William's third son, Reginald de Braose reacquired his father's lands and titles for himself through simply seizing them back by force following the death of Giles. Reginald did not actually come to terms with the Crown until 1217 and the new, young King Henry III of England, after the death of King John. This, in turn, aroused the anger of Llywelyn the Great who had an understanding with Giles de Braose and the seeming duplicity caused the Welsh to attack de Braose lands in Brecon and Abergavenny and Gower. Abergavenny Castle had to be rebuilt as a result. Reginald de Braose died in 1228.