Geoffrey de MANDEVILLE & Adeliza de BALTS 
They had a son named William de.
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Personal Details
Geoffrey de MANDEVILLE
Geoffrey de was born about 1053 in Rycott, Oxfordshire, England. He died about 1085 in Westmionster Abbey, London, Middlesex, England.
Adeliza de BALTS
Adeliza de was born about 1040 in Rycott, Oxfordshire, England. She died about 1100 in Westminster Abbey, London, middlesex, England.
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Children
William de MANDEVILLE, Earl of Essex
William de was born about 1070 in Great Waltham, Essexshire, England. He died about 1130 in England.