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Male William De Percy Click to view William De Percy in the family tree

William was born in Alnwick, Northumberland, England.  William's father was Henry I De Percy and his mother was Isabel De Brus.  His paternal grandparents were Josceline "Barbatus" De Louvain and Agnes De Percy; his maternal grandparents were Adam II De Brus and Joanna De Meschines.  He was an only child.  He died about July 28th, 1245.


William's family with Ellen De Balliol

They had two sons named Walter and Henry.

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