She was born on 29 July 1942 and is the daughter of Marie Joseph Elz*ar Foulques de Sabran-Pontev*s, 7th Duke of Sabran-Pontev*s and Roselyne Manca-Amat de Vallombrosa. Gersende is incidentally a descendant of James II of England and his illegitimate son, James Fitzjames, 1st Duke of Berwick, through her maternal grandfather's mother, Genevi*ve de Perusse des Cars.
Marie Joseph Elz*ar Foulques de Sabran-Pontev*s
Roselyne Manca-Amat de Vallombrosa