Family/Spouse: Gilbert (4th Earl of Pembroke) Marshal. Gilbert (son of William Marshal and Isabel De Clare) was born in 1196 in Pembroke, Pembrokeshire, Wales, England; died on 27 Jun 1241 in Killed following accident at torney being held at Ware, Hertfordshire, England; was buried in London, City of London, Greater London, England. [Group Sheet] [Family Chart]