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Male William I de Braose Baron Sir Click to view William I de Braose Baron Sir in the family tree

William I de was born about 1049 in Briouze Near Argentan,Normandy,Fr.  William I de's father was Robert I de Brus 1st Lord Brix and his mother was Gunnora (Emma) de Brittany. He had four brothers and three sisters, named Roger de, Adam (Adelm) de, Allan, Robert De, Philina, Hortolina and Amicia.  He was the second oldest of the eight children.  He died in 1087 in Bramber,Sussex,Eng.1 


William I de's first family with Agnes de St Clare

They had two sons and five daughters, named John de, Adam de, Jean de, Amicia de, Philena de, Hortense de and Matilda de.


William I de's second family with Eva De Boissay

They had a son named Philip I de.


William I de's third family with Mathilde Mrs De Braose

They had a son named William II "Black Will" de.

1 The Plantagenet Ancestry, by William Henry Turton, 1968
Further sources/citations:
Ancestral File 4.13, The Plantagenet Ancestry, by William Henry Turton, 1968 @ 78

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