DisgrifiadTomen-y-Rhodwydd is a ditched motte, between 38 and 42m in diameter and between 4.9 and 7.8m high. It stands on the north-east of a crescentic bailey, approximately 57m from east to west by 46m, defined by a bank and ditch. There is a continuous counterscarp around both motte and bailey, the whole work occupying an area approximately 118m by 90m.
The castle's construction is recorded in 1149 and its destruction in 1157.
J.Wiles, RCAHMW, 22 October 2002.
