Gilbert De Clare & Isabel Marshall 
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Personal Details
Gilbert De Clare
Gilbert was born in 1182 in Hertford, Hertfordshire, England.2 He died at the age of 48 on October 25th, 1230 in Penrose, Brittany, France.2
Isabel Marshall
Isabel was born about 1203 in of, Pembrokeshire, Wales.3 She died in Berkhamstead, Hertfordshire, England.3