It was built by the Norman Lord Bernard de Neufmarché in 1093, and was frequently assaulted by the Welsh in 13th and 15th centuries.
It began falling into ruin when Henry VIII executed the last dukes of Buckingham, who at the time controlled the castle.
Bernard de Neufmarché, sometimes claimed to be William the Conqueror's brother,[1] conquered Brycheiniog after killing Rhys ap Tewdwr at the battle of Brecon, which occurred around Easter 1093.
[2] The castle was built at the merging point of the rivers Usk and Honddu, conferring the benefits of protection and hydropower for mills.
Edward Stafford, 3rd Duke of Buckingham (1477–1521), born in Brecon Castle,[6] was executed for treason in 1521 and posthumously attainted in 1523, when all the family's estates escheated to the crown.
[4] Renovations were begun in 1809 by Sir Charles Morgan of Tredegar House, and more than £7,000 had been spent on the repairs by 1814.