William I FITZALAN & Isabel de SAY 
They had a daughter named Christina.
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Personal Details
William I FITZALAN
William I was born in 1105 in Dol, Bertagne, France. He died at the age of 55 in 1160 in Oswestry, Shropshire, England.
Isabel de SAY
Isabel de was born in 1132 in Clun , Shropshire, England. She died at the age of 67 in 1199 in Boscastle, Cornwall, England.