William de VERNON & Mabel (Mabirie) de BEAUMONT 
They had a daughter named Mary de Reviers de.
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Personal Details
William de VERNON
William de was born about 1128 in Devonshire, England. He died on September 10th, 1217 in Isle of Wight, Hampshire, England.
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Children
Mary de Reviers de VERNON
Mary de Reviers de was born about 1183 in Exeter, Devonshire, England. She died in 1242.