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Male William De Clare [Sir Knight] Click to view William De Clare [Sir Knight] in the family tree

William De was born on May 18th, 1228 in Gloucestershire, England.  William De's father was Gilbert De Clare Earl Gloucester & Hertford and his mother was Isabel Marshal [Countess Of Cornwall]. He had two brothers and four sisters, named Richard De, Gilbert De, Avicia De, Isabel De, Adeliza De and Agnes De.  He was the third youngest of the seven children.  He died in Retherford.  He was buried on July 23rd, 1258 in Dureford Abbey.


William De's family with UNNAMED

They had a daughter named Isabel De.

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