Geoffroi I De+ Mandeville & Athelaise De+ Balthes 
They had a son and a daughter, named William De+ and Beatrice De+.
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Personal Details
Geoffroi I De+ Mandeville
Geoffroi I De+ was born about 1036 in Mandeville, Seine-Inferieure, Normandy, France.
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Children
William De+ Mandeville
William De+ was born about 1060 in Great Waltham, Essex, England. He died about 1130 in England.