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Male William De Clare Click to view William De Clare in the family tree

William was born on May 18th, 1228 in Gloucestershire, England.1   William's father was Gilbert (The Surety) De Clare and his mother was Isobel Marshall.  His paternal grandparents were 4th Earl of Hertford, 6th Earl of Clare Richard (The Surety) De Clare and Countess of Gloucester Amica Meullent Of Gloucester; his maternal grandparents were 4th Earl of Pembroke William (The Protector) Marshall (FitzGilbert) and Isobel Fitzrichard De Clare. He had two brothers and seven sisters, named Richard, Gilbert, Joan, Maud, Susan, Amica, Adeliza , Agnes and Isabel.  He was the fourth youngest of the ten children.  He died at the age of 30 in 1258 in Retherford, England.2 

Family Details of William's family with <Unknown>

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