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Male William I De Braose Click to view William I De Braose in the family tree

William I was born about 1049 in Brienze, Normandy, France.  William I's father was Robert I De Brus and his mother was Emma of Brittany.  His paternal grandparents were Rognvald Brusesson and Felicia De Normandie; his maternal grandparents were III Alan and Bertha de Blois. He had three brothers named Adam, Roger and Robert.  He was the second youngest of the four children.  He died in 1087 in Bramber, Sussex, England.


William I's first family with Agnes De Clare

‌William I and Agnes were married in a religious ceremony about 1073 in Brienze, Normandy, France.  They had three sons and two daughters, named Philip, Adam, John, Matilda and Hortense.


William I's second family with Eve de Boissay

They had two daughters named Philena and Amicia.

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