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Female Sibyl Marshal Click to view Sibyl Marshal in the family tree

Sibyl was born in 1209 in Pembroke, Wales, England.1   Sibyl's father was 4th Earl of Pembroke William (The Protector) Marshall (FitzGilbert) and her mother was Isobel Fitzrichard De Clare.  Her paternal grandparents were John (The Marshal) Fitzgilbert and Sibyl D'Everaux; her maternal grandparents were Richard I De Clare and Eva (of Leinster) Macmurrough. She had four brothers and four sisters, named Richard, Gilbert, Walter, William, Maud, Isobel, Joan and Eva.  She was the youngest of the nine children.  She died at the age of 36 on April 27th, 1245.1 

Family Details of Sibyl's family with William de Ferrers


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