William I De+ Lanvallei & Gunnora De+ Saint Clare 
They had a son named William II De+.
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Personal Details
William I De+ Lanvallei
William I De+ was born about 1125 in Great Bromley, Essex, England. He died after 1180.
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Children
William II De+ Lanvallei
William II De+ was born about 1155 in Wakerly, Northamptonshire, England. He died before May 18th, 1205.