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

William was born about 1193 in Alwick, Northumberland, England.  William's father was Sir Henry De Percy and his mother was Isobel de Brus.  His paternal grandparents were Count of Louvaine Josceline and Agnes De Percy; his maternal grandparents were Adam II de Bruce and Joanna de Meschines.  He was an only child.  He died on July 28th, 1245.


William's first family with Joan De Briwere

They had a daughter named Anastasia.


William's second family with Ellen de Baliol

They had a son named Sir Henry.

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