Isolt de Mortimer (1262 - uncertain 4 Aug 1338) (1262–1338) Parents Gwladus Ddu Ralph de Mortimer Children Alice Audley Hugh de Audley, 1st Earl of Gloucester James Audley Siblings Roger Mortimer, 1st Baron Mortimer Partners Hugh Audley, 1st Baron Audley of Stratton Audley Sir Walter de Balun