William de SAY & Beatrice MANDEVILLE 
They had a son named Geoffrey (the Surety) de.
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Personal Details
William de SAY
William de was born about 1120 in Saye,Normandy, France. He died in Burwell Castle, cambridgeshire, England.
Beatrice MANDEVILLE
Beatrice was born about 1100 in Rickling, Essexshire, England. She died in 1197 in Walden Abbey, Essexshire, England.
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Children
Geoffrey (the Surety) de SAY
Geoffrey (the Surety) de was born about 1150 in Essexshire, England. He died on May 19th, 1214.