Guillaume de Briouze is recorded in lists of those present at the Battle of Hastings. He became the first Lord of the Bramber Rape by 1073 and built Bramber Castle. William made considerable grants to the abbey of Saint Florent, Saumur to endow the foundation of Sele Priory near Bramber and a priory at Briouze. He continued to fight alongside King William in the campaigns in Britain, Normandy, and Maine.
See remains of gatehouse at Bramber Castle.
William de Braose came into England with the Conqueror and held, at the general survey, considerable estates in the counties of Berks, Wilts, Surrey, Dorset, and Sussex. He was s. by his son, Philip de Braose. [Sir Bernard Burke, Dormant, Abeyant, Forfeited and Extinct Peerages, Burke's Peerage, Ltd., London, 1883, p. 72, Braose, Baron Braose, of Gower]