Geoffrey de MANDEVILLE 
Geoffrey de was born about 1053 in Rycott, Oxfordshire, England. Geoffrey de's father was Geoffrey de MANDEVILLE. He was an only child. He died about 1085 in Westmionster Abbey, London, Middlesex, England.
They had a son named William de.
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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.