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Skenfrith Castle ((ウェールズ語:Ynysgynwraidd)) is a medieval castle located in Monmouthshire, Wales. The castle is in the centre of the village of Skenfrith, located on the banks of the River Monnow, five and a half miles north-west of the town of Monmouth. The first defences were built shortly after the Norman Conquest of 1066, although the remains of the castle that stand today date from the early thirteenth century. The castle is a Grade II * listed building as at 19 November 1953.〔http://britishlistedbuildings.co.uk/wa-2083-skenfrith-castle-llangattock-vibon-avel〕 Grouped with White Castle and Grosmont Castle, Skenfrith is one of the "Three Castles" or Trilateral Castles built in the Monnow Valley as part of the Norman conquest of South Wales. ==History of "The Three Castles"== The Monnow Valley was an important route between Hereford and Monmouth in medieval times, due to its position as an area of relatively open land, which provided a break between the river cliffs of the Wye Valley to the east, and the hills around Abergavenny to the west. The Three Castles are usually grouped together by historians because for almost their entire history they were part of a block of territory under the control of a single lord. All three sites have evidence for early Norman earthworks, possibly built by William fitz Osbern, who was made Earl of Hereford by William the Conqueror a few months after the Norman Conquest of England in 1066. From his castles at Monmouth and Chepstow, William was the first Norman lord to conquer central and eastern Monmouthshire, including the future sites for the Three Castles. The defences raised at this time would probably have been of earth and timber. Fitz Osbern died in 1071, and his lands were forfeited to the crown after his son Roger de Breteuil was involved in a rebellion against King William in 1075. Later the king divided up this strategically important territory – the only time in their active history that the Three Castles were owned separately. They were reunited by King Stephen in the late 1130s as a response to Welsh rebellion in the southern March, and would remain a single lordship until the nineteenth century. There is little evidence of building activity at any of the castles until the late twelfth century, when they were fortified by Ralph of Grosmont, a royal official who supervised building work for the king in Hereford. The castles were then completely overhauled by Hubert de Burgh, who was granted lordship of the Three Castles by King John in 1201. Control of the Three Castles was briefly granted to William de Braose in 1205, when Hubert was a prisoner of Philip Augustus, the king of France, but William quickly fell out of favour, and by 1207 John had forced him into ruin. Hubert de Burgh returned to power, and was appointed Justiciar in 1215. From his time fighting in France Hubert had a knowledge of the latest in military architecture, and in the years after 1219 he was a prosperous lord who had great influence with King Henry III. He rebuilt Skenfrith Castle between 1219 and 1223 and Grosmont Castle between 1224 and 1226 in stone, adding domestic apartments to both castles, so that they could be used as lordly residences. He held the Three Castles until 1239, although they were briefly taken from him after he fell out of royal favour in 1232 (they were returned after his reconciliation to the king two years later). After Hubert de Burgh, the Three Castles were held in royal hands, and in 1254 Henry III granted them to his eldest son, the future Edward I. In the 1260s the southern March was threatened by the Welsh Prince Llewelyn ap Gruffudd, who annexed the lordship of Brecon, and attacked nearby Abergavenny. Gilbert Talbot was appointed constable of the Three Castles, and ordered to garrison them 'at whatever cost'. Although Llewelyn's attack on Abergavenny failed, the Treaty of Montgomery in 1267 recognized his southern conquests, and he was considered a significant threat. 1267 saw the Three Castles being granted to Edward's younger brother Edmund, Earl of Lancaster. Although the Welsh threat was soon subdued with the death of Llywelyn in 1282, the Three Castles were used as residences and centres for local authority. The castles passed down through the earls of Lancaster until the death of Henry of Grosmont, Duke of Lancaster, whose daughter Blanche married John of Gaunt, son of Edward III. John of Gaunt was made Duke of Lancaster in 1364, and the Three Castles would remain part of the duchy of Lancaster until 1825. John and Blanche's son, Henry of Bolingbroke, deposed Richard II in 1399 and became King Henry IV, at which time the Three Castles also became royal possessions once more. Although the Three Castles briefly saw action during the rebellion of Owain Glyndŵr in 1404-05, they never again played a major role in military affairs. Henry VI carried out repairs to White Castle and Skenfrith Castle in the mid fifteenth century, but by 1538 the castles were abandoned, and ruinous. In 1825 the duchy of Lancaster sold the castles to the duke of Beaufort, whose estate divided them and sold each to different local landowners in 1902. White Castle was given to the State in 1922, followed by Grosmont in 1923. Skenfrith passed through several hands before being given to the National Trust. All three castles are now conserved and maintained by Cadw, and are open to the public. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Skenfrith Castle」の詳細全文を読む スポンサード リンク
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