Llanthomas Castle Mound

About

Llanthomas Castle Mound near Hay-on-Wye, Powys, was built by the Normans after the 1066 Norman Conquest of England, probably after the Norman invasion of Wales in 1081, but before 1215. It was a motte-and-bailey castle design. The building materials were earth, rubble, and timber.

The earth was probably obtained from the surrounding ditch and the timber from nearby woods. Cadw are the Welsh government-funded regulatory body for the scheduling of historical assets in Wales. They describe Llanthomas Castle Mound as an important relic of medieval architecture which might extend knowledge of medieval defensive practices.

Their scheduled area comprises the motte and a substantial area of lawn at the base of the motte, where related evidence is expected to survive.