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Male William I de Say , of Sawbridgeworth, Sir Click to view William I de Say , of Sawbridgeworth, Sir in the family tree

William I de was born about 1106 in Sawbridgeworth, Bishop's Stortford, Hertfordshire, England.  William I de's father was Geoffrey de Say , of Sawbridgeworth, Sir and his mother was Hawise de Clare.  His maternal grandparents were Gilbert Fitz Richard de Clare , Earl Hertford and Adeliza de Claremont.  He was an only child.  He died after August 1144 in Killed attacking Burwell Castle, Cambridgeshire, England.


William I de's family with Beatrice de Mandeville

‌William I de and Beatrice de were married in a religious ceremony before 1133 in 2nd husband 1st wife.  They had two sons named William II de and Geoffrey I de.

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