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Male William I Bertram Click to view William I Bertram in the family tree

William I was born about 1080 in Mitford Castle, Morpeth, Northumberland, England.  William I's father was Richard Bertram and his mother was Sibella De Mitford.  His paternal grandparents were William Bertram and Miss De Bostenburgh; his maternal grandparents were John De Mitford and Mrs John De Mitford.  He was an only child.  He died in 1150.  He was buried in Founded Augustinian Priory Of Brinkburne, Northumberland.


William I's first family with Hawise De Merlay

‌William I and Hawise De were married in a religious ceremony before 1134 in 2ND Wife.  They had a son named Richard I.


William I's second family with Hawise De Baliol

They had a son named Roger I.

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