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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 de Percy and his mother is Isabel de Brus.  His paternal grandparents were Lord Joscelain de Louvain of Petworth and Agnes de Percy; his maternal grandfather was Baron Adam de Brus III of Skelton.  He was an only child.  He died on July 28th, 1245.  He was buried on July 28th, 1245 in Salley Abbey, Craven, Yorkshire, England.


William's first family with Ellen Balliol

‌William and Ellen were married in a religious ceremony about 1234 in Red Castle, Augushire, Scotland.  They had a son named Henry.


William's second family with Joan de Briwere

They had a daughter named Anastacia.

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