William I De William Cantelou

William I De was born in 1159 in Reading, Berkshire, England and his baptism took place about 1159 in Of Eaton Bray 12.  William I De's father was Walter De Walter Cantelou and his mother was Mrs. Walter 1128 Cantelou.  His paternal grandparents were Walter Cantilupe and Mrs. Walter 1102 Cantilupe. He had two brothers and two sisters, named Fulk, Roger, Maud De and Sibilla.  He was the second oldest of the five children.  He died at the age of 80 on April 7th, 1239 in Ellesborough, Wycombe, Buckinghamshire, England.

‌William I De and Macelin were married in a religious ceremony about 1184 in Eaton Bray, Bedfordshire, England, UK.  They had five sons named William II De, Walter, John De, Nicholas and Thomas.

‌William I De and Maud D' were married in a religious ceremony after 1194.