William deMortaigne Earl of Cornwall & Isabel Fitz Richard deClare 
They had a son and a daughter, named Aldhelm deBurgo and Beatrice.
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Personal Details
William deMortaigne Earl of Cornwall
William deMortaigne Earl of was born in 1058 in Cornwall, England. He died at the age of 82 in 1140.
Isabel Fitz Richard deClare
Isabel Fitz Richard was born in 1098. Isabel Fitz Richard is no longer alive.
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