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

William was born in 1049 in Brienze, Normandy, France.1   William's father was Robert le Brus I and his mother was Emma de Brittany.  His paternal grandparents were Robert le Bruce and Felicia of Normandy; his maternal grandparents were Count Allan of Brittany III and Bertha de Blois. He had three brothers named Roger, Adam and Robert.  He was the second oldest of the four children. He had a half-brother named Robert.  He died at the age of 44 in 1093 in Bramber, Sussex, England.1 

Family Details of William's family with Agnes St. Clair

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