William de Braose, born perhaps c1175, died Corfe or Windsor Castle 1210, of starvation by order of King John, son of William de Braose, died 1211, Lord of Bramber, Sussex, by his wife Maud de St Valery. [Magna Charta Sureties]
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William did not accompany King Richard on Crusade but fought with King John against Philip in Normandy (1203/4). King John demanded William as a hostage for his father's loyalty in 1208. His mother Maud refused and the fled to Ireland. In 1210 John prepared an expedition to Ireland. Maud and William escaped Ireland, but were apprehended in Scotland. William the father was in Wales at the time. It is believed that Maud and William were starved to death at Windsor Castle (Some say Corfe).
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William, who perished by starvation with his mother at Windsor m. Maud, dau. of the Earl of Clare, with whom he had the town of Buckingham, in frank marriage, and left a son, John. [Sir Bernard Burke, Dormant, Abeyant, Forfeited and Extinct Peerages, Burke's Peerage, Ltd., London, England, 1883, p. 72, Braose, Baron Braose, of Gower]