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

William was born in 1193 in Alnwick, Northumberland, England.  William's father was Henry de Percy and his mother was Isabel le Brus.  His paternal grandparents were Joscelin de Louvaine and Agnes de Percy; his maternal grandfather was Adam II de Bruce and his maternal grandmother is Joanna de Meschines. He had a brother named Henry I.  He was the older of the two children.  He died before July 28th, 1245.  He was buried in Sallay Abbey.


William's first family with Ellen de Balliol

‌William and Ellen were married in a religious ceremony on June 12th, 1233.  They had five sons and a daughter, named Ingram, William, Walter, Alan, Henry II and Jocelin.


William's second family with Joan de Briwere

They had four daughters named Agnes, Alice, Anastacia and Joan.

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