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Male Piers de Grandison Click to view Piers de Grandison in the family tree

Piers was born about 1287 in Ashperton, Herefordshire, England.  Piers' father was Lord William de Grandison and his mother was Sybil Tregoz.  His paternal grandfather was Sire Amadeus de Grandson and his paternal grandmother is Banoli de la Tour; his maternal grandparents were Lord John de Tregoz and Mabel FitzWarin. He had a sister named Katherine.  He was the older of the two children. He had a half-sister named Agnes.  He died on August 10th, 1358.


Piers' family with Blanche de Mortimer

‌Piers and Blanche were married in a religious ceremony before June 10th, 1330 in Wigmore, Herefordshire, England.  They had a daughter named Isabel.

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