Best Castle in Monmouthshire, Wales - Map and Reviews

Skenfrith Castle stands beside the River Monnow close to the Welsh border, one of the celebrated “Three Castles” of Monmouthshire along with Grosmont and White Castle. These three fortresses formed a unified defensive system controlling the borderlands between England and Wales from the eleventh to thirteenth centuries. The first fortification at Skenfrith was a modest Norman earth-and-timber castle built shortly after 1066 on rising ground just above the river. By the early thirteenth century King John undertook a major reconstruction of all three castles following renewed Welsh pressure. At Skenfrith he swept away the earlier earthworks and ordered the construction of a stone enclosure castle, the form that survives today. The curtain wall forms an almost perfect circle encircling a large courtyard, watched over by a massive cylindrical keep known as the Great Tower. This tower is one of the finest examples of its type in Britain, combining formidable thickness of walling with refined internal planning, including a hall at first-floor level lit by embrasured windows. The Monnow was diverted to create a water-filled moat around parts of the defences, adding to the site’s strength. Yet despite these impressive works the castle’s active military life was relatively short. After the Edwardian conquest of Wales its strategic purpose faded, and by the fifteenth century it was beginning to decline. The garrison was withdrawn in the Tudor period and the buildings gradually decayed, leaving the shell that stands today. Restoration work by the state in the twentieth century cleared debris, consolidated the walls and made the keep accessible once more. Skenfrith’s enduring appeal lies in its harmonious riverside setting and in the distinctive circular plan of its thirteenth-century fortifications. The keep and curtain wall rise to significant height, making it one of the best-preserved of the border castles and a striking companion to the more elaborate White Castle and the austere Grosmont. Skenfrith Castle Skenfrith Castle stands beside the River Monnow close to the Welsh border, one of the celebrated “Three Castles” of Monmouthshire along with Grosmont and White Castle. These three fortresses formed a unified defensive system controlling the borderlands between England and Wales from the eleventh to thirteenth centuries. The first fortification at Skenfrith was a modest Norman earth-and-timber castle built shortly after 1066 on rising ground just above the river. By the early thirteenth century King John undertook a major reconstruction of all three castles following renewed Welsh pressure. At Skenfrith he swept away the earlier earthworks and ordered the construction of a stone enclosure castle, the form that survives today. The curtain wall forms an almost perfect circle encircling a large courtyard, watched over by a massive cylindrical keep known as the Great Tower. This tower is one of the finest examples of its type in Britain, combining formidable thickness of walling with refined internal planning, including a hall at first-floor level lit by embrasured windows. The Monnow was diverted to create a water-filled moat around parts of the defences, adding to the site’s strength. Yet despite these impressive works the castle’s active military life was relatively short. After the Edwardian conquest of Wales its strategic purpose faded, and by the fifteenth century it was beginning to decline. The garrison was withdrawn in the Tudor period and the buildings gradually decayed, leaving the shell that stands today. Restoration work by the state in the twentieth century cleared debris, consolidated the walls and made the keep accessible once more. Skenfrith’s enduring appeal lies in its harmonious riverside setting and in the distinctive circular plan of its thirteenth-century fortifications. The keep and curtain wall rise to significant height, making it one of the best-preserved of the border castles and a striking companion to the more elaborate White Castle and the austere Grosmont.

Caldicot Castle near Caldicot in Monmouthshire is a well-preserved medieval castle of the thirteenth to fifteenth centuries, developed by the Bohun and later Lancaster royal families and now managed as a museum and events venue by Monmouthshire County Council. The castle retains significant standing remains including a circular keep, gatehouse, walls and towers that together provide one of the better-preserved castle complexes in southeast Wales. The castle grounds include a moat, formal gardens and extensive lawns used for outdoor events and medieval re-enactments throughout the year. The medieval banquets, theatrical events and heritage activities hosted at Caldicot make it one of the more actively programmed castle venues in Wales. The surrounding landscape of the Caldicot Level, a low-lying agricultural plain reclaimed from tidal marsh over many centuries, provides a distinctive flat landscape between the castle and the Severn estuary.

Clytha Castle is a striking gothic folly situated in the rolling countryside of Monmouthshire, in south-east Wales — not South East England, despite the approximate region listed. It stands on a gentle hill overlooking the Usk Valley, and is one of the most romantically picturesque estate buildings in Wales. The castle is a Landmark Trust property, meaning it has been carefully restored and is available to rent as a self-catering holiday accommodation rather than operating as a conventional visitor attraction. This unusual status gives it a particular appeal: rather than simply walking past it, guests can actually sleep within its walls, waking up inside a gothic fantasy amid views of the Welsh countryside. It is a Grade I listed building, reflecting its considerable architectural and historical significance. The castle was built in 1790 by William Jones of Clytha House, who constructed it as a memorial to his late wife, Elizabeth. An inscription over the entrance door records that it was erected to relieve a sorrowing husband from the melancholy and painful recollections of the loss of a most excellent wife. This deeply personal origin gives Clytha Castle an emotional resonance that sets it apart from many other follies of the Georgian era, which were typically built as landscape ornaments or expressions of wealth and taste rather than as acts of grief and remembrance. The architect is believed to have been John Davenport, and the building was designed in a Gothick style with battlements, turrets, and arched windows fashionable among the English and Welsh gentry of the late eighteenth century. In terms of its physical character, Clytha Castle is a compact but theatrical structure, with a central round tower flanked by smaller octagonal turrets and a castellated roofline that gives it the silhouette of a miniature medieval fortress. The stonework is pale and weathered, sitting comfortably within the landscape as though it has always been there. Up close, the gothic detailing — pointed arches, arrow-slit windows, and decorative battlements — is carefully rendered and gives the building an air of theatrical authenticity. Inside, the Landmark Trust has furnished it in a manner appropriate to its period and character, creating an experience that feels genuinely immersive. Standing at the castle, one can hear birdsong and the distant sound of the River Usk, with very little intrusion from the modern world. The surrounding landscape is quintessential Monmouthshire: soft green hills, ancient hedgerows, and river meadows threaded by the Usk as it winds toward the Severn. The town of Abergavenny lies a few miles to the north-west, offering access to the Brecon Beacons and the broader Black Mountains area. Raglan Castle, one of the finest late medieval fortresses in Wales, is within easy driving distance to the south. The village of Clytha itself is tiny, and the castle sits within the grounds of Clytha Park, a private estate, though the Landmark Trust property is accessible to those staying there. The area is excellent walking country, and the Usk Valley Walk passes through the surrounding landscape. For those wishing to visit, the only way to access the interior of Clytha Castle is to book it through the Landmark Trust, which rents it by the week or for shorter breaks. It sleeps a small number of guests and is frequently in demand, so booking well in advance is advisable. The surrounding grounds and exterior can be appreciated on foot via public footpaths in the area. The best time to visit is spring or autumn, when the surrounding parkland is at its most beautiful and the crowds that gather around the more famous sites of the Brecon Beacons are thinner. The nearest significant town is Abergavenny, roughly five miles away, and the A40 provides good road access to the area from both east and west. One of the more fascinating aspects of Clytha Castle is how perfectly it exemplifies the Georgian fascination with the gothic and the picturesque. At a time when wealthy landowners across Britain were constructing artificial ruins, hermitages, and miniature castles to create emotionally charged views within their estates, William Jones went a step further by intertwining architectural fashion with genuine personal grief. The result is a building that functions simultaneously as a landscape ornament, a personal monument, and a piece of architectural theatre. Staying within it today, guests inhabit not just a building but the crystallised emotion of an eighteenth-century widower, which gives the place a haunting quality that few holiday cottages in Britain can match.

Usk Castle is a partially ruined medieval stone castle occupying a commanding position above the River Usk in the historic town of Usk. Unlike many Welsh castles, it remains in private ownership and is still lived in, with the ruins and grounds opened seasonally to the public. The site preserves a rare blend of Norman military architecture, later domestic adaptation and deep pre medieval roots. The castle was founded in the early twelfth century, probably around 1120, as a Norman timber motte and bailey constructed to secure control of the Usk valley during the expansion of Norman power into Gwent. The location was strategically chosen, sitting above an important river crossing and routeway linking the Welsh interior with the Severn estuary. The Normans reused the northern edge of an earlier Roman legionary fortress, giving the site a defensive pedigree stretching back more than a millennium. During the thirteenth century the timber defences were replaced with stone. A curtain wall was constructed around the summit, reinforced by corner towers and a substantial round keep. Several of these towers still survive in varying states of preservation, including the Garrison Tower and a rare thirteenth century dovecote tower, a symbol of lordly status rather than military necessity. The castle never developed into a concentric fortress but remained a strong Marcher stronghold with mixed domestic and defensive functions. Usk Castle played an active role in the conflicts of the Welsh Marches. It changed hands multiple times during struggles between Welsh princes and Anglo Norman lords, and it was closely connected to events during the uprising of Owain Glyndŵr. In 1405, the surrounding area witnessed the Battle of Pwll Melyn, a decisive and brutal engagement in which Glyndŵr’s forces were defeated by English troops, leading to the execution of his relatives and a severe blow to the rebellion. The castle itself remained under English control during this period. By the sixteenth century, as the border region stabilised, Usk Castle lost its military importance. Rather than being slighted or abandoned entirely, parts of the castle were adapted for domestic use. In the late seventeenth century the gatehouse was converted into Castle House, a private residence that still forms the inhabited core of the site today. This continuous occupation has preserved sections of the castle that might otherwise have been lost. The surviving ruins include substantial stretches of curtain wall, four principal towers, and earthworks relating to the original Norman motte. The relationship between the Roman fortress remains, medieval castle and later house is unusually clear, making Usk one of the most layered castle sites in South Wales. The castle grounds retain a strong sense of enclosure and overlook the historic town below, reinforcing the site’s long role as a place of authority and control. Usk Castle stands today not as a single moment frozen in time, but as a palimpsest of Welsh and Norman power, conflict, adaptation and continuity, from Roman legionaries to Marcher lords to a lived in historic residence. Alternate names: Usk Castle, Castell Bryn Buga, Castle Bryn Buga Usk Castle Usk Castle is a partially ruined medieval stone castle occupying a commanding position above the River Usk in the historic town of Usk. Unlike many Welsh castles, it remains in private ownership and is still lived in, with the ruins and grounds opened seasonally to the public. The site preserves a rare blend of Norman military architecture, later domestic adaptation and deep pre medieval roots. The castle was founded in the early twelfth century, probably around 1120, as a Norman timber motte and bailey constructed to secure control of the Usk valley during the expansion of Norman power into Gwent. The location was strategically chosen, sitting above an important river crossing and routeway linking the Welsh interior with the Severn estuary. The Normans reused the northern edge of an earlier Roman legionary fortress, giving the site a defensive pedigree stretching back more than a millennium. During the thirteenth century the timber defences were replaced with stone. A curtain wall was constructed around the summit, reinforced by corner towers and a substantial round keep. Several of these towers still survive in varying states of preservation, including the Garrison Tower and a rare thirteenth century dovecote tower, a symbol of lordly status rather than military necessity. The castle never developed into a concentric fortress but remained a strong Marcher stronghold with mixed domestic and defensive functions. Usk Castle played an active role in the conflicts of the Welsh Marches. It changed hands multiple times during struggles between Welsh princes and Anglo Norman lords, and it was closely connected to events during the uprising of Owain Glyndŵr. In 1405, the surrounding area witnessed the Battle of Pwll Melyn, a decisive and brutal engagement in which Glyndŵr’s forces were defeated by English troops, leading to the execution of his relatives and a severe blow to the rebellion. The castle itself remained under English control during this period. By the sixteenth century, as the border region stabilised, Usk Castle lost its military importance. Rather than being slighted or abandoned entirely, parts of the castle were adapted for domestic use. In the late seventeenth century the gatehouse was converted into Castle House, a private residence that still forms the inhabited core of the site today. This continuous occupation has preserved sections of the castle that might otherwise have been lost. The surviving ruins include substantial stretches of curtain wall, four principal towers, and earthworks relating to the original Norman motte. The relationship between the Roman fortress remains, medieval castle and later house is unusually clear, making Usk one of the most layered castle sites in South Wales. The castle grounds retain a strong sense of enclosure and overlook the historic town below, reinforcing the site’s long role as a place of authority and control. Usk Castle stands today not as a single moment frozen in time, but as a palimpsest of Welsh and Norman power, conflict, adaptation and continuity, from Roman legionaries to Marcher lords to a lived in historic residence.

Monmouth Castle is one of the most historically significant castles in south east Wales, both as a key Norman frontier stronghold and as the birthplace of Henry V. Although only fragments survive today, the remaining stonework represents more than nine centuries of continuous political, military and administrative use. The castle was founded shortly after 1067, probably by William fitz Osbern, Earl of Hereford, who secured the Wye Valley for the Normans after the Conquest. The original castle was a classic motte and bailey, with a timber keep on the motte and service buildings in the bailey alongside what is now Monnow Street. Its position above the River Monnow allowed the Normans to oversee the important crossing at Monmouth and to control the routes into the Forest of Dean and the uplands of Gwent. During the twelfth and thirteenth centuries, the timber structures were gradually replaced in stone. The most substantial surviving feature is the Great Tower, a powerful square keep built in the late twelfth century. Its massive walls and elevated position above the town made it one of the strongest early keeps in the Marches. Nearby are the remains of a hall block, a curtain wall, and parts of the domestic range that served the medieval household. Monmouth Castle played an important role in the political affairs of the March. It came under the control of the de Braose, Marshal, and de Bohun families, each among the most prominent lords of medieval Wales and England. It also served as an administrative centre, overseeing large portions of the lordship of Monmouth. In 1387, the castle became famous as the birthplace of Henry V, the future victor of Agincourt. The event is well documented and is one of the reasons the castle retains such strong cultural and historical recognition. The castle’s defensive importance began to wane by the fifteenth century as Monmouth grew into a market town. By the Civil War in the seventeenth century, the castle was used again for military purposes but was slighted by Parliamentarian forces in the 1640s to prevent further use. This led to the collapse and ruin of many of the buildings. Today the remains form part of a small, well maintained site adjacent to the Regimental Museum of the Royal Monmouthshire Royal Engineers, the oldest regiment in the British Army. Visitors can explore the upstanding walls of the Great Tower, sections of the hall range, and the earthworks that outline the earlier layout. Although modest in size, Monmouth Castle preserves the essential core of a site that once controlled one of the most important crossings between England and Wales. Alternate names: Monmouth Castle, Castell Mynwy, Monnow Castle Monmouth Castle Monmouth Castle is one of the most historically significant castles in south east Wales, both as a key Norman frontier stronghold and as the birthplace of Henry V. Although only fragments survive today, the remaining stonework represents more than nine centuries of continuous political, military and administrative use. The castle was founded shortly after 1067, probably by William fitz Osbern, Earl of Hereford, who secured the Wye Valley for the Normans after the Conquest. The original castle was a classic motte and bailey, with a timber keep on the motte and service buildings in the bailey alongside what is now Monnow Street. Its position above the River Monnow allowed the Normans to oversee the important crossing at Monmouth and to control the routes into the Forest of Dean and the uplands of Gwent. During the twelfth and thirteenth centuries, the timber structures were gradually replaced in stone. The most substantial surviving feature is the Great Tower, a powerful square keep built in the late twelfth century. Its massive walls and elevated position above the town made it one of the strongest early keeps in the Marches. Nearby are the remains of a hall block, a curtain wall, and parts of the domestic range that served the medieval household. Monmouth Castle played an important role in the political affairs of the March. It came under the control of the de Braose, Marshal, and de Bohun families, each among the most prominent lords of medieval Wales and England. It also served as an administrative centre, overseeing large portions of the lordship of Monmouth. In 1387, the castle became famous as the birthplace of Henry V, the future victor of Agincourt. The event is well documented and is one of the reasons the castle retains such strong cultural and historical recognition. The castle’s defensive importance began to wane by the fifteenth century as Monmouth grew into a market town. By the Civil War in the seventeenth century, the castle was used again for military purposes but was slighted by Parliamentarian forces in the 1640s to prevent further use. This led to the collapse and ruin of many of the buildings. Today the remains form part of a small, well maintained site adjacent to the Regimental Museum of the Royal Monmouthshire Royal Engineers, the oldest regiment in the British Army. Visitors can explore the upstanding walls of the Great Tower, sections of the hall range, and the earthworks that outline the earlier layout. Although modest in size, Monmouth Castle preserves the essential core of a site that once controlled one of the most important crossings between England and Wales.

Abergavenny Castle is a ruined medieval castle in the gateway town to the Brecon Beacons National Park in Monmouthshire, originally built around 1090 by Hamelin de Ballon as part of the Norman conquest of southeast Wales. The castle became notorious as the site of the Christmas 1175 massacre when the Norman lord Sytsylt de Ewyas invited Welsh chieftains to a feast and had them slaughtered, an event that gave the castle an enduring reputation for treachery in Welsh historical memory. The substantial remains of the keep, gate towers and curtain wall survive within an attractive public park in the town centre, with a museum in the castle grounds interpreting the history of the town and region. Abergavenny is celebrated as the Food Capital of Wales, hosting the annual Food Festival that attracts leading chefs and food producers, and serves as the main centre for exploring the Black Mountains and eastern Brecon Beacons.

Llanvair Discoed is a 13th century castle hidden away in the raised grounds covered in think undergrowth next to the village church, built by Sir Ralph Monthermer upon the site of an earlier fortress. The unusual name of the castle and village translates as Mary's (Mair>Fair) church (llan) under (is) the wood (coed). The village is mentioned in the Domesday Book of 1086 as 'Lamecare'. The 'D' in Discoed only appeared in more recent times. The castle is situated on private ground so can only be viewed from the outside via the adjacent church grounds or fields behind. Covered in thick ivy and surrounded by a forest of thorns and nettles, gaining sight of this wonderful castle is sadly very difficut indeed. Two towers and parts of the curtain wall and gatehouse remain but are in a sad state of disrepair in need of more work, love and care than the current owners are able to provide it with. A hidden gem if you are able to find it!

Trecastle in Monmouthshire is an impressive Norman motte with the fragmentary traces of a once-substantial bailey, lying on rising ground between Dingestow and Raglan. Although far less known than the larger Trecastle in Powys, this site preserves the classic form of an early borderland stronghold. The motte stands over six metres high, its sides still steep and well shaped, with a flat summit roughly fifteen metres across where the timber tower and domestic structures once stood. A ditch protects the northern side, while the southern edge is marked by a strong scarp and the remains of a bank that once enclosed the bailey. The bailey itself has been partly absorbed into the modern Old Trecastle Farm, whose buildings sit directly over much of the original defensive court. Watching briefs have identified buried medieval layers beneath the farm structures, confirming that the bailey was once fully enclosed and contained ancillary buildings. Despite this later intrusion, the layout of the medieval site remains legible in the landscape, and the topography still reflects the authority and permanence that the Norman builders sought to impose. Trecastle was one of a network of early timber castles established across Gwent in the decades following the Norman conquest. Castles in this region were typically placed near the fertile lowlands of the Usk valley to secure newly granted estates and the communication routes linking Chepstow, Raglan, Usk and the Herefordshire border. Its position suggests a deliberate attempt to dominate the agricultural land around the Trothy valley while also monitoring the approach routes towards Raglan and Monmouth. Although no documented medieval events survive for this particular site, its form and location show it was an important local centre of authority rather than a minor outpost. The continuity of occupation at this location is one of its most striking features. The present Old Trecastle Farmhouse, a substantial sixteenth or early seventeenth century dwelling, stands immediately beside the motte and is a Grade II* listed building. This later mansion reuses the same high-status platform chosen by the Normans centuries earlier, demonstrating that the medieval lords’ selection of the site remained valid long after the military castle itself had gone. This pattern is typical of many Monmouthshire sites where medieval lordship evolved into post-medieval gentry estates. Although the castle was never rebuilt in stone, and no masonry survives above ground, the earthen motte remains well defined and retains considerable archaeological potential. The buried soils beneath the summit may preserve traces of timber structures, burnt layers and artefacts relating to the early Norman occupation of Monmouthshire. Together with the later farmhouse complex, the site forms an important palimpsest of medieval and early modern lordship in the borderlands. Alternate names: Trecastle, Trecastle Motte, Old Trecastle, Trecastle Farm Motte. Trecastle Trecastle in Monmouthshire is an impressive Norman motte with the fragmentary traces of a once-substantial bailey, lying on rising ground between Dingestow and Raglan. Although far less known than the larger Trecastle in Powys, this site preserves the classic form of an early borderland stronghold. The motte stands over six metres high, its sides still steep and well shaped, with a flat summit roughly fifteen metres across where the timber tower and domestic structures once stood. A ditch protects the northern side, while the southern edge is marked by a strong scarp and the remains of a bank that once enclosed the bailey. The bailey itself has been partly absorbed into the modern Old Trecastle Farm, whose buildings sit directly over much of the original defensive court. Watching briefs have identified buried medieval layers beneath the farm structures, confirming that the bailey was once fully enclosed and contained ancillary buildings. Despite this later intrusion, the layout of the medieval site remains legible in the landscape, and the topography still reflects the authority and permanence that the Norman builders sought to impose. Trecastle was one of a network of early timber castles established across Gwent in the decades following the Norman conquest. Castles in this region were typically placed near the fertile lowlands of the Usk valley to secure newly granted estates and the communication routes linking Chepstow, Raglan, Usk and the Herefordshire border. Its position suggests a deliberate attempt to dominate the agricultural land around the Trothy valley while also monitoring the approach routes towards Raglan and Monmouth. Although no documented medieval events survive for this particular site, its form and location show it was an important local centre of authority rather than a minor outpost. The continuity of occupation at this location is one of its most striking features. The present Old Trecastle Farmhouse, a substantial sixteenth or early seventeenth century dwelling, stands immediately beside the motte and is a Grade II* listed building. This later mansion reuses the same high-status platform chosen by the Normans centuries earlier, demonstrating that the medieval lords’ selection of the site remained valid long after the military castle itself had gone. This pattern is typical of many Monmouthshire sites where medieval lordship evolved into post-medieval gentry estates. Although the castle was never rebuilt in stone, and no masonry survives above ground, the earthen motte remains well defined and retains considerable archaeological potential. The buried soils beneath the summit may preserve traces of timber structures, burnt layers and artefacts relating to the early Norman occupation of Monmouthshire. Together with the later farmhouse complex, the site forms an important palimpsest of medieval and early modern lordship in the borderlands.

White Castle is the best preserved and most visually impressive of the Three Castles of Monmouthshire, alongside Grosmont and Skenfrith. Unlike many marcher castles that survive only as fragments or earthworks, White Castle retains an almost complete circuit of walls and towers, making it one of the finest examples of a developed 13th-century border fortress in Wales. Its name is thought to derive from the pale limestone rendering that once covered its masonry, giving it a striking appearance against the surrounding landscape. The site began life in the late 11th century as a simple Norman earth and timber castle, probably established by William FitzOsbern or one of his followers during the initial Norman push into south-east Wales. Its position was carefully chosen to control routes through the Monnow valley and to project authority into a region that remained volatile for generations. By the early 13th century the castle had passed into royal hands, reflecting its strategic importance to the English Crown. The transformation of White Castle into the imposing stone fortress seen today took place mainly between the 1220s and 1260s. During this period it was rebuilt as a powerful concentric-style stronghold with a large inner ward, surrounded by a deep moat and a massive curtain wall strengthened by four huge D-shaped towers. These towers are among the finest of their type in Britain, designed to deflect missiles and resist undermining. The gatehouse, also heavily fortified, controlled access across the moat and into the inner enclosure. White Castle was administered directly by royal officials for long periods and became part of the defensive system known as the Three Castles, which were managed together as a single lordship. In 1254 the castles were granted to Lord Edward, the future Edward I, who further strengthened them during his campaigns in Wales. Although White Castle did not witness major sieges on the scale of Edward’s later North Wales castles, its very strength acted as a deterrent and symbol of royal dominance in the marcher zone. By the later medieval period the frontier stabilised and the military importance of the Three Castles declined. White Castle gradually fell out of use and was never converted into a domestic residence, which paradoxically helped preserve its defensive form. Its walls, towers and moat were left largely intact, avoiding the extensive remodelling or quarrying that damaged many other castles. Today White Castle stands as a dramatic and evocative ruin, with its towers, gatehouse and curtain walls rising above the surrounding fields much as they did in the 13th century. Managed by Cadw, it offers an unusually complete view of a mature marcher castle and provides a clear contrast to the later, more elaborate Edwardian fortresses of North Wales. More than any other of the Three Castles, White Castle conveys the raw authority and architectural confidence of Norman and Plantagenet power on the Welsh border. Alternate names: White Castle, Castell Gwyn, Y Castell Gwyn, Whitecastle White Castle White Castle is the best preserved and most visually impressive of the Three Castles of Monmouthshire, alongside Grosmont and Skenfrith. Unlike many marcher castles that survive only as fragments or earthworks, White Castle retains an almost complete circuit of walls and towers, making it one of the finest examples of a developed 13th-century border fortress in Wales. Its name is thought to derive from the pale limestone rendering that once covered its masonry, giving it a striking appearance against the surrounding landscape. The site began life in the late 11th century as a simple Norman earth and timber castle, probably established by William FitzOsbern or one of his followers during the initial Norman push into south-east Wales. Its position was carefully chosen to control routes through the Monnow valley and to project authority into a region that remained volatile for generations. By the early 13th century the castle had passed into royal hands, reflecting its strategic importance to the English Crown. The transformation of White Castle into the imposing stone fortress seen today took place mainly between the 1220s and 1260s. During this period it was rebuilt as a powerful concentric-style stronghold with a large inner ward, surrounded by a deep moat and a massive curtain wall strengthened by four huge D-shaped towers. These towers are among the finest of their type in Britain, designed to deflect missiles and resist undermining. The gatehouse, also heavily fortified, controlled access across the moat and into the inner enclosure. White Castle was administered directly by royal officials for long periods and became part of the defensive system known as the Three Castles, which were managed together as a single lordship. In 1254 the castles were granted to Lord Edward, the future Edward I, who further strengthened them during his campaigns in Wales. Although White Castle did not witness major sieges on the scale of Edward’s later North Wales castles, its very strength acted as a deterrent and symbol of royal dominance in the marcher zone. By the later medieval period the frontier stabilised and the military importance of the Three Castles declined. White Castle gradually fell out of use and was never converted into a domestic residence, which paradoxically helped preserve its defensive form. Its walls, towers and moat were left largely intact, avoiding the extensive remodelling or quarrying that damaged many other castles. Today White Castle stands as a dramatic and evocative ruin, with its towers, gatehouse and curtain walls rising above the surrounding fields much as they did in the 13th century. Managed by Cadw, it offers an unusually complete view of a mature marcher castle and provides a clear contrast to the later, more elaborate Edwardian fortresses of North Wales. More than any other of the Three Castles, White Castle conveys the raw authority and architectural confidence of Norman and Plantagenet power on the Welsh border.

Raglan Castle is one of the most impressive late medieval fortifications in Britain, famous for its combination of powerful military design and the refined comfort of a Renaissance palace. Even in ruin, its tall towers, grand gatehouse and moat give a sense of the immense prestige it represented in the fifteenth and sixteenth centuries. The castle is built around a striking central feature known as the Great Tower, a massive hexagonal keep rising from the middle of its own water filled moat. The tower was reached by a drawbridge and contained high status private chambers on its upper floors. Around the Great Tower lies the Pitched Stone Court, flanked by ranges of buildings that included halls, kitchens, buttery, cellarage and extensive accommodation for the household. The outer court is guarded by an elaborate gatehouse, one of the finest surviving in Wales. Its design combines defensive elements with decorative stonework and carved heraldic detail, reflecting the increasingly symbolic nature of castle architecture in the fifteenth century. The outer walls, angle towers and the broad moat surrounding the site all contribute to Raglan’s dramatic appearance. Construction began in the early fifteenth century under Sir William ap Thomas, the Blue Knight of Gwent. His son, William Herbert, Earl of Pembroke, continued the building and transformed Raglan into one of the most magnificent residences in the Marches. In the later sixteenth century the Somerset family enhanced the castle further, adding long galleries, grand staircases and Renaissance style windows that softened the earlier defensive character. Raglan reached the height of its splendour in the decades before the English Civil War. During the war it became a Royalist stronghold and withstood one of the longest sieges of the conflict. After the defenders surrendered in 1646, Parliament ordered the castle to be slighted. The demolition work was severe, tearing down the roofs and upper walls and leaving the castle in the romantic ruinous state visible today. Despite this, Raglan remains one of the most visually impressive castles in Wales. Its mixture of late medieval fortification and aristocratic Renaissance architecture gives it a unique character. The sheer scale of the ruins, the deep moat and the sculptural quality of the stonework make Raglan one of the most important historic sites in the country. Alternate names: Raglan Castle, Castell Rhaglan Raglan Castle Raglan Castle is one of the most impressive late medieval fortifications in Britain, famous for its combination of powerful military design and the refined comfort of a Renaissance palace. Even in ruin, its tall towers, grand gatehouse and moat give a sense of the immense prestige it represented in the fifteenth and sixteenth centuries. The castle is built around a striking central feature known as the Great Tower, a massive hexagonal keep rising from the middle of its own water filled moat. The tower was reached by a drawbridge and contained high status private chambers on its upper floors. Around the Great Tower lies the Pitched Stone Court, flanked by ranges of buildings that included halls, kitchens, buttery, cellarage and extensive accommodation for the household. The outer court is guarded by an elaborate gatehouse, one of the finest surviving in Wales. Its design combines defensive elements with decorative stonework and carved heraldic detail, reflecting the increasingly symbolic nature of castle architecture in the fifteenth century. The outer walls, angle towers and the broad moat surrounding the site all contribute to Raglan’s dramatic appearance. Construction began in the early fifteenth century under Sir William ap Thomas, the Blue Knight of Gwent. His son, William Herbert, Earl of Pembroke, continued the building and transformed Raglan into one of the most magnificent residences in the Marches. In the later sixteenth century the Somerset family enhanced the castle further, adding long galleries, grand staircases and Renaissance style windows that softened the earlier defensive character. Raglan reached the height of its splendour in the decades before the English Civil War. During the war it became a Royalist stronghold and withstood one of the longest sieges of the conflict. After the defenders surrendered in 1646, Parliament ordered the castle to be slighted. The demolition work was severe, tearing down the roofs and upper walls and leaving the castle in the romantic ruinous state visible today. Despite this, Raglan remains one of the most visually impressive castles in Wales. Its mixture of late medieval fortification and aristocratic Renaissance architecture gives it a unique character. The sheer scale of the ruins, the deep moat and the sculptural quality of the stonework make Raglan one of the most important historic sites in the country.

Pen Y Clawdd Castle is a medieval earthwork fortification situated in the county of Powys in mid-Wales, representing one of the many motte-and-bailey or ringwork castle sites that punctuate this historically contested borderland between Wales and England. The site sits within the broader Marches landscape, a zone that saw centuries of territorial struggle between Welsh princes and Norman lords following the Conquest. While it lacks the dramatic standing stonework of more famous Welsh castles, Pen Y Clawdd possesses the quiet authority of an earthwork that has endured for nearly a millennium, its raised mounds and ditches still clearly readable in the landscape for those who know how to look. For visitors interested in the archaeology of medieval power and the raw, unmediated experience of a site that has not been sanitized by heavy restoration, it offers a genuinely atmospheric encounter with early medieval Wales. The castle's origins almost certainly lie in the period of Norman expansion into Wales during the eleventh and twelfth centuries, when Marcher lords pushed westward and established a network of earth-and-timber strongholds to consolidate their gains. Many such sites in this part of Powys were subsequently contested, destroyed, rebuilt, or abandoned as Welsh princes reasserted control and the political geography of the region shifted. The name itself is Welsh, with "pen" meaning head or top and "clawdd" meaning dyke, bank, or earthwork, suggesting the site may incorporate or reference even earlier defensive or boundary features in the landscape, possibly connected to the ancient practice of constructing linear earthworks that was widespread in pre-Norman Wales. Physically, the site presents as an earthwork complex rising from the surrounding terrain, with the characteristic profile of raised ground that once supported timber structures now long since decayed. Visiting such a site is an exercise in imagination as much as observation — the grassy mounds and hollow ways speak of former habitation in a language that requires some patience to decode. The surrounding vegetation, typical of this part of Wales with its mix of hedgerow, rough pasture, and scattered woodland, gives the site a secluded, almost forgotten quality. On a still day the silence is profound, broken only by birdsong and the distant sounds of farming activity. The broader landscape around these coordinates places the site in the Usk Valley corridor and the foothills leading toward the Brecon Beacons to the south and the rolling uplands of Powys to the north and west. This is a part of Wales characterized by deeply rural scenery, narrow lanes, and small market towns. The River Usk and its tributaries have shaped both the geography and the history of settlement here, providing fertile valley floors surrounded by more challenging upland terrain. The medieval network of castles in this zone reflects the strategic importance of the river valleys as routes of movement and control. Access to earthwork castle sites of this type in rural Wales typically requires navigation along minor roads and possibly some walking across farmland or rough ground, and visitors should be prepared for the possibility that formal signage and car parking may be minimal or absent. Checking current access arrangements before visiting is advisable, as some such sites sit on or adjacent to private farmland and permission or consideration may be required. The best time to visit is late autumn or winter when vegetation is low and the earthwork profiles are most visible; summer visits, while pleasanter in terms of weather, can obscure the site's features beneath dense growth. Sturdy footwear is always recommended for rural Welsh sites of this character. One of the quietly fascinating aspects of sites like Pen Y Clawdd is precisely their obscurity — they represent the texture of medieval life beyond the great showpiece fortresses, the local-scale assertions of power by minor lords or Welsh chieftains that collectively shaped the character of the landscape. The survival of the earthworks, however modest, across nine centuries of agricultural change is itself a remarkable fact, a testament to the durability of simple earth when left largely undisturbed. For the dedicated explorer of Welsh history willing to seek out places that reward effort with solitude and genuine connection to the past, this is exactly the kind of site that makes the Marches and border Powys so endlessly compelling.

Llangibby Castle, also known as Tregrug Castle, stands as one of the more enigmatic and underappreciated medieval ruins in Wales — sitting in the county of Monmouthshire in the south-east corner of the country. The village of Llangibby (Llangybi in Welsh), a quiet rural settlement in the Usk Valley between Caerleon and Usk. The castle is a substantial but largely forgotten ruin, and that obscurity is precisely part of its appeal: visitors who seek it out are rewarded with an evocative, crumbling fortification that feels genuinely undiscovered compared to the more famous castles that pepper this part of Wales. The castle dates primarily from the late thirteenth and early fourteenth centuries, and its construction is associated with the de Clare family, one of the most powerful Marcher Lord dynasties of medieval Wales. The de Clares were lords of Glamorgan and held significant sway across south-east Wales following the Norman conquest of the region. Tregrug Castle — the name derives from Welsh, with "tref" meaning settlement or town, reflecting the intended ambition of the site — appears to have been built as an administrative and defensive centre for the lordship of Usk. It is a particularly interesting example of a late medieval Welsh castle in that it features a large walled enclosure that suggests it was intended to serve not just as a military stronghold but as a fortified town, with the outer walls encompassing a considerable area that may have been planned for civilian occupation. This ambition was never fully realised, and the castle seems to have been relatively short-lived in its active use, which is part of why it remains less celebrated in the historical record. After the de Clare line ended in the early fourteenth century following the catastrophic Battle of Bannockburn in 1314, in which Gilbert de Clare was killed without a male heir, the lordship passed through a series of hands including the Despenser family and eventually the Crown. The castle's strategic importance appears to have diminished over the fourteenth and fifteenth centuries, and by the Tudor period it was already falling into disrepair. Owain Glyndŵr's rebellion in the early fifteenth century caused widespread destruction across the region, and it is likely that Llangibby Castle suffered during this tumultuous period, as many Marcher Lord fortifications did. The site was subsequently abandoned and left to decay, which is what gives it the romantically ruinous character it has today. In person, Llangibby Castle is a place of impressive scale and atmospheric melancholy. The curtain walls, though broken and heavily overgrown in sections, still stand to considerable height in places, giving a real sense of the castle's original extent. The stonework is local grey limestone, weathered to a soft, mottled texture that blends into the surrounding vegetation in a way that makes the ruins feel as though they are being gradually reclaimed by the earth. The interior of the enclosure is grassy and open, with the remains of towers at intervals along the walls. On a quiet day — and it is almost always quiet here — the only sounds are birdsong, the rustle of wind through the trees that have established themselves within and around the walls, and the occasional distant sound of farm machinery from the surrounding fields. There is a wildness and stillness to the place that is rare even among Welsh ruins. The surrounding landscape is classically beautiful Usk Valley countryside: rolling green fields, hedgerow-lined lanes, and the River Usk winding through the valley below. The valley is broad and fertile, with the Black Mountains visible to the north-west on clear days and the wooded ridges of Monmouthshire rising to either side. The village of Llangibby itself is small and unspoiled, with a church dedicated to Saint Cybi nearby that has its own medieval origins and is worth a visit in conjunction with the castle. The market town of Usk lies a few miles to the north and offers shops, pubs, and the remains of Usk Castle, making the area a rewarding destination for those interested in Welsh medieval history. Caerleon, the remarkable Roman fortress town with its amphitheatre, baths, and barracks, is only a short drive to the south, making this whole corridor of the Usk Valley exceptionally rich in historical interest. Access to Llangibby Castle requires some effort, which contributes to its unspoiled character. The ruins sit on private farmland and visitors should be aware that access arrangements can vary; historically it has been accessible by footpath and there are public rights of way in the area, but it is always advisable to check current access conditions before visiting. The site is not managed by Cadw, Historic England, or any national heritage body in a formal visitor-facing capacity, which means there are no car parks, interpretation panels, or facilities on site. Visitors should wear sturdy footwear as the ground around the ruins is uneven and can be muddy in wet weather. The best approach is typically on foot from the village of Llangibby, following local paths across the fields. The site is best visited in late spring or early summer when the vegetation is not so overgrown as to obscure the stonework, or in autumn when the colours of the surrounding trees add to the atmosphere. A clear dry day significantly enhances the experience, both for the walking conditions and for the long views across the valley. One of the most fascinating aspects of Llangibby Castle is precisely the contrast between its physical scale and its historical invisibility. The walled enclosure is large enough to have housed a small town, and the ambition implied in its construction is remarkable, yet it appears to have barely functioned as intended before falling into obsolescence. This gives the site a strange, suspended quality — a place that was built for a future that never arrived. For those interested in Marcher Lord history, the castle is a valuable and tangible link to one of the most complex and violent periods of Welsh and English history, when powerful Norman dynasties carved out semi-independent territories along the Welsh border and built in stone to assert a permanence that proved, in the end, far less durable than the landscape itself.

St Mary’s Yard Mound is the earthwork remains of a small medieval timber castle situated near the village of Llanfair Kilgeddin in Monmouthshire. It occupies a naturally strong position on a river cliff overlooking the River Usk and survives today entirely as earthworks, with no standing masonry. The monument consists of a low but broad D-shaped mound measuring approximately 28 metres by 22 metres and rising to around 2.5 metres in height. A surrounding ditch provided the primary artificial defence, while the steep drop to the river on one side offered substantial natural protection. The shape and scale suggest a modest motte or ringwork rather than a large motte-and-bailey complex, indicating a site intended for local control rather than regional domination. The summit of the mound would originally have supported a timber structure, most likely a small tower or hall enclosed by a wooden palisade. As with many castles of this type, the timber superstructure has completely disappeared, leaving only the reshaped ground to indicate its former presence. There is no evidence that the site was ever rebuilt in stone, and its limited height and footprint suggest a short-lived or low-status fortification. Very little documentary history survives for St Mary’s Yard Mound. It is generally dated to the medieval period, broadly between the late 11th and 13th centuries, and is likely to have functioned as a minor defensive or administrative site connected to local landholding rather than a major military stronghold. Its position overlooking the Usk implies a role in monitoring river movement and asserting control over nearby farmland and settlement. The mound lies close to the historic churchyard at Llanfair Kilgeddin, a pairing that is frequently seen at early medieval castle sites in Wales and the Marches. This proximity suggests the castle may have formed part of an early manorial centre, combining ecclesiastical, administrative and defensive functions within a compact landscape. Today, St Mary’s Yard Mound is a Scheduled Monument, legally protected in recognition of its archaeological importance. Although visually understated, it represents an important example of the small timber castles that formed the backbone of medieval territorial control in Monmouthshire. Its quiet survival above the River Usk preserves a fragment of a landscape shaped by Norman expansion, local lordship and the practical realities of medieval defence. Alternate names: St Mary’s Yard Mound, Llanfair Kilgeddin Castle Mound, St Mary’s Yard Castle St Marys Yard Mound St Mary’s Yard Mound is the earthwork remains of a small medieval timber castle situated near the village of Llanfair Kilgeddin in Monmouthshire. It occupies a naturally strong position on a river cliff overlooking the River Usk and survives today entirely as earthworks, with no standing masonry. The monument consists of a low but broad D-shaped mound measuring approximately 28 metres by 22 metres and rising to around 2.5 metres in height. A surrounding ditch provided the primary artificial defence, while the steep drop to the river on one side offered substantial natural protection. The shape and scale suggest a modest motte or ringwork rather than a large motte-and-bailey complex, indicating a site intended for local control rather than regional domination. The summit of the mound would originally have supported a timber structure, most likely a small tower or hall enclosed by a wooden palisade. As with many castles of this type, the timber superstructure has completely disappeared, leaving only the reshaped ground to indicate its former presence. There is no evidence that the site was ever rebuilt in stone, and its limited height and footprint suggest a short-lived or low-status fortification. Very little documentary history survives for St Mary’s Yard Mound. It is generally dated to the medieval period, broadly between the late 11th and 13th centuries, and is likely to have functioned as a minor defensive or administrative site connected to local landholding rather than a major military stronghold. Its position overlooking the Usk implies a role in monitoring river movement and asserting control over nearby farmland and settlement. The mound lies close to the historic churchyard at Llanfair Kilgeddin, a pairing that is frequently seen at early medieval castle sites in Wales and the Marches. This proximity suggests the castle may have formed part of an early manorial centre, combining ecclesiastical, administrative and defensive functions within a compact landscape. Today, St Mary’s Yard Mound is a Scheduled Monument, legally protected in recognition of its archaeological importance. Although visually understated, it represents an important example of the small timber castles that formed the backbone of medieval territorial control in Monmouthshire. Its quiet survival above the River Usk preserves a fragment of a landscape shaped by Norman expansion, local lordship and the practical realities of medieval defence.

Dingestow Motte is a medieval earthwork fortification located in the village of Dingestow, in Monmouthshire, Wales. Despite the database entry suggesting South East England, the coordinates 51.78896, -2.78469 place this site firmly in the county of Monmouthshire in south-east Wales — a region that has historically occupied a borderland identity between England and Wales, and which was administratively treated as English territory for centuries before being unambiguously returned to Welsh governance in the twentieth century. The motte is a classic example of Norman military architecture in earthwork form: a raised mound of earth upon which a timber or stone keep would originally have stood, forming the central defensive element of a motte-and-bailey castle. It is a scheduled ancient monument, which reflects the importance placed upon its preservation and the significance it holds as a surviving remnant of the Norman conquest and consolidation of the Welsh Marches. The Norman presence in this part of Wales was established in the late eleventh and early twelfth centuries, as the invaders pushed westward from their strongholds along the English border into territories that had long been held by native Welsh lords. Monmouthshire was a particularly contested region during this period, lying in the shadow of the powerful lordship of Abergavenny and subject to repeated cycles of Welsh resistance and Norman reassertion. Dingestow itself appears in historical records as a small settlement of some local significance, and the motte almost certainly served as a manorial or administrative centre for a local Norman lord seeking to control this stretch of the Trothy Valley. The precise identity of the castle's original builder is not definitively established in surviving records, but the earthwork is consistent in form and date with the broad wave of Norman castle-building that swept through this part of Wales in the century following the conquest of England in 1066. In terms of its physical character, the motte presents itself as a substantial earthen mound rising with some prominence above the surrounding ground level. Earthwork mottes of this type were engineered to be visually imposing as well as practically defensive, and even after centuries of weathering, erosion and vegetation growth, the mound at Dingestow retains enough mass to give a visitor a clear sense of the commanding presence it once had. The summit, where a wooden tower or stone structure would have stood, is now grassed over, and the mound is clothed in the kind of rough, unmanicured vegetation typical of undisturbed ancient monuments in the Welsh countryside. The atmosphere at such places tends to be quiet and slightly timeless — birdsong, the rustle of wind through hedgerows, and the absence of the visual clutter of modern development combine to make it easier than usual to project oneself imaginatively into the medieval past. The surrounding landscape is characteristic of the gentle, pastoral beauty of the Trothy Valley and the broader Monmouthshire countryside. The Trothy is a small river that winds through this part of the county before joining the Monnow, itself a tributary of the Wye, and the valley bottom is a patchwork of green fields, mature hedgerows and clusters of deciduous woodland. The village of Dingestow is a quiet, rural community, and the motte sits within an agricultural setting that has changed relatively little in its fundamental character over many centuries. The nearby town of Monmouth, only a few kilometres to the north-east, offers the most substantial point of local reference, with its own rich medieval heritage including the remains of Monmouth Castle — birthplace of King Henry V — and the fortified bridge gate known as Monnow Bridge, one of the finest surviving examples of its kind in Britain. For visitors, Dingestow Motte is the kind of site that rewards those who seek out quieter, less-publicised heritage rather than expecting visitor facilities or interpretation boards. Access is via the rural lanes that serve the village of Dingestow, which lies roughly between Monmouth and Raglan along roads running through the vale. There is no dedicated car park or formal visitor infrastructure associated with the monument itself, and visitors should expect to navigate narrow country roads and observe the customary considerations around parking sensitively in a small rural village. The best approach is to combine a visit here with exploration of the wider area, perhaps taking in Raglan Castle to the south-west — a spectacular and well-preserved late medieval fortification in the care of Cadw — and the various walking routes that thread through the Trothy Valley. The motte is at its most atmospheric in spring and autumn, when the light is low and golden and the vegetation is either fresh or turning, and when visitor numbers to the broader region are manageable. One of the quietly compelling aspects of a place like Dingestow Motte is the way it embodies the layered, often turbulent history of the Welsh Marches without announcing itself loudly. This was border country in the most literal and consequential sense — a zone where language, law, loyalty and identity were all contested and fluid for centuries. The lords who built and occupied these earthwork fortifications were operating in a landscape of persistent insecurity, where Welsh rulers like those of Gwent might reclaim territory, burn settlements and dismantle Norman authority with alarming speed. That the mound survives at all, still legible in the landscape after perhaps nine hundred years, is a testament both to the engineering instincts of its medieval builders and to the benign neglect that scheduled monument status now formalises into protective policy. For anyone with an interest in the archaeology of power, landscape history or the particular drama of the Norman conquest of Wales, it represents a modest but genuinely evocative point of contact with the deep past.

Chepstow Castle is one of the most important and historic stone castles in Britain. It stands on a limestone cliff above the River Wye at the southern edge of Chepstow town, close to the English border. Its long, narrow form stretches along the ridge for more than two hundred metres, which makes Chepstow the oldest and one of the longest surviving stone fortresses in Wales and England. Construction began shortly after the Norman Conquest. The first stone structure, the Great Tower, was built in 1067 for William FitzOsbern, one of the most powerful Norman lords. This makes Chepstow the earliest surviving stone keep in Britain, built at a time when most castles still relied on timber. The castle was expanded many times over the centuries. During the late twelfth century the Great Tower was heightened and improved under the care of William Marshal, Earl of Pembroke, one of the greatest knights of the medieval world. His sons and later the Bigod family continued the work, turning Chepstow into a sophisticated and heavily defended stronghold. The layout includes four wards arranged along the clifftop. Each ward contains a mixture of towers, gatehouses, curtain walls and service buildings. The Middle Gatehouse and Upper Gatehouse show the development of defensive architecture from Norman to medieval periods. The castle also retains one of the oldest and best preserved portcullis slots in Britain. Inside the Great Tower there are remains of fine medieval plasterwork and decorative stonework. Chepstow Castle played a significant role throughout medieval and early modern history. It was held during numerous Welsh uprisings and served as a key fortress during border conflicts. In the seventeenth century it was garrisoned during the English Civil War, and after its final surrender in 1648 the castle was partially dismantled. Despite this, its massive walls survived in remarkably good condition. The castle stands today as an outstanding example of medieval military architecture. Its riverside setting, great height above the Wye gorge and remarkably intact walls make it one of the most visually dramatic fortresses in Wales. Chepstow is now cared for by Cadw and is fully accessible to the public, with extensive interpretation on site. Alternate names: Striguil Castle, Castell Cas-gwent Chepstow Castle Chepstow Castle is one of the most important and historic stone castles in Britain. It stands on a limestone cliff above the River Wye at the southern edge of Chepstow town, close to the English border. Its long, narrow form stretches along the ridge for more than two hundred metres, which makes Chepstow the oldest and one of the longest surviving stone fortresses in Wales and England. Construction began shortly after the Norman Conquest. The first stone structure, the Great Tower, was built in 1067 for William FitzOsbern, one of the most powerful Norman lords. This makes Chepstow the earliest surviving stone keep in Britain, built at a time when most castles still relied on timber. The castle was expanded many times over the centuries. During the late twelfth century the Great Tower was heightened and improved under the care of William Marshal, Earl of Pembroke, one of the greatest knights of the medieval world. His sons and later the Bigod family continued the work, turning Chepstow into a sophisticated and heavily defended stronghold. The layout includes four wards arranged along the clifftop. Each ward contains a mixture of towers, gatehouses, curtain walls and service buildings. The Middle Gatehouse and Upper Gatehouse show the development of defensive architecture from Norman to medieval periods. The castle also retains one of the oldest and best preserved portcullis slots in Britain. Inside the Great Tower there are remains of fine medieval plasterwork and decorative stonework. Chepstow Castle played a significant role throughout medieval and early modern history. It was held during numerous Welsh uprisings and served as a key fortress during border conflicts. In the seventeenth century it was garrisoned during the English Civil War, and after its final surrender in 1648 the castle was partially dismantled. Despite this, its massive walls survived in remarkably good condition. The castle stands today as an outstanding example of medieval military architecture. Its riverside setting, great height above the Wye gorge and remarkably intact walls make it one of the most visually dramatic fortresses in Wales. Chepstow is now cared for by Cadw and is fully accessible to the public, with extensive interpretation on site.