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Female Anastace de Percy Click to view Anastace de Percy in the family tree

Anastace was born about 1220 in Alnwick, Northumberland.1   Anastace's father was William de Percy IV Baron Percy and her mother was Joan de Briwere.  Her paternal grandparents were Henry de Percy I Baron Percy and Isabel le Brus; her maternal grandparents were William de Briwere II Lord Horsley and Beatrice de Vaux. She had a sister named Agnes. She had a half-brother named Henry de Percy II.

Family Details of Anastace's family with Ralph FitzRalph Lord Middleham

1 large-G675.FTW
Further sources/citations:
History of the House of Percy, Ancestry of Richard Plantagenet & Cecily de Neville, Neville GEDCOM

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