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Male William FitzWilliam FitzAlan Click to view William FitzWilliam FitzAlan in the family tree

William FitzWilliam's father was William FitzAlan and his mother was Isabel De Say.  His paternal grandfather was Alan; his maternal grandfather was Elias De Say.  He was an only child.


William FitzWilliam's family with Agnes De Lacy

They had two sons named William and John FitzAlan of.

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