William de MANDEVILLE & Margaret de RIE 
They had a daughter named Beatrix de.
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Personal Details
William de MANDEVILLE
William de was born about 1054 in Great Waltham, Essex, England. He died after 1085 in Westminster Abbey, Westminster, Middlesex, England.
Margaret de RIE
Margaret de was born on July 12th, 1088 in Rycote, Great Haseley, Oxfordshire, England.
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Children
Beatrix de MANDEVILLE
Beatrix de was born in 1101 in Mandeville, Normandie, France. She died at the age of 96 on April 19th, 1197 in Rockling, Essex, England.