Guillaume de Briouze is recorded in lists of those present at the Battle of Hastings. He became the first Lord of Bramber Rape by 1073 and built Bramber Castle. (Right - remains of the gatehouse) 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.
The latest evidence for William is his presence at the consecration of his church at Briouze in 1093. In 1096 his son Philip was issuing charters. From this we can deduce that William died between 1093 and 1096.
Mother: Gunnor (See Round, Cal. Doc. Fra. p148)
Brydges edition of Collins' Peerage claims he was first married to Agnes, dau of Waldron de Saint Clare but no evidence for this can be found. It may be an example of Bruce - Braose confusion.
According to L C Perfect, a 13th century genealogy in the Bibliothèque de Paris gives the name of his wife as Eve de Boissey, widow of Anchetil de Harcourt. There is a lot of evidence from contemporary charters which supports this view.
Child 1: Philip