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Male John De Grandison Click to view John De Grandison in the family tree

John was born about 1284.  John's father was Sir William De Grandison and his mother was Sibyle De Tregoz.  His paternal grandparents were Amadeus De Grandison and Banoile De La Tour De Gerenstein; his maternal grandparents were John De Tregoz and Matilda Fitz-Warren. He had two brothers and three sisters, named Piers, Otho, Mabilia, Katherine and Agnes.  He was the third oldest of the six children. He had a half-sister named Agnes.

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