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

Piers was born in 1287 in Ashperton, Herefordshire, England.  Piers' father was William de Grandison , Sir and his mother was Sybil de Tregoz.  His paternal grandfather was Pierre I Sire de Grandson and his paternal grandmother is Agnes de Neuchatel; his maternal grandparents were John de Tregoz , Sir, Baron Tregoz and Mable FitzWarren. He had three sisters named Agnes, Mabilla and Katherine.  He was the oldest of the four children.  He died at the age of 71 on August 10th, 1358.


Piers' family with Blanche de Mortimer


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