Rhayader Castle

About

Rhayader Castle is the remains of a motte-and-bailey castle in the town of Rhayader, Powys, Wales. The available documentary sources are not clear enough to distinguish between this site and the castle mound across the river and one or the other was probably built by Rhys ap Gruffydd, Prince of Deheubarth, in 1177. At that time the river formed the border between Gwrtheyrnion and the independent state of Buellt; the town of Rhayader is on the Gwrtheyrnion side of the river.

Rhys had recently conquered Buellt, hitherto ruled by William de Braose, as vengeance for the latter's notorious treatment of Welsh princes at Abergavenny Castle. The exact status of Gwrtheyrnion is unclear, its only recorded ruler having been an unidentified Einion ap Rhys, whose is described as Rhys ap Gruffydd's son-in-law; Rhys did have a son-in-law named Einion, but this was Einion o'r Porth, the son of Einion Clud, and ruler of Elfael. In 1182, however, Rhys and William de Braose made a peace agreement, with Rhys' son, Gruffydd, being wed to William's daughter.

They were on sufficiently friendly terms for William to be allowed to re-establish himself in Buellt. Einion o'r Porth joined the Third Crusade in 1188...