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Male William De Saint John Click to view William De Saint John in the family tree

William De was born on June 14th, 1309 in Basing, Hampshire, England.  William De's father was John De Saint John and his mother was Egeline De Courtenay.  His paternal grandparents were John De Saint John and Alice Fitz-Piers; his maternal grandparents were Hugh de Courtenay and Alinore le Despencer. He had a brother and a sister, named Hugh De and Margaret De.  He was the second oldest of the three children. He had a half-brother and a half-sister, named Robert and Eleanor Isabelle.

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