Isabelle-Gabrielle-Diane de Clermont-Tonnerre * Île de France, Paris, 16.06.1902 † Brussels, Brussels, 18.06.1950 Ancestors Surname Marriages Information only available for Geneall Plus. Please Login or Register. Related Links Information only available for Geneall Plus. Please Login or Register. Corrections and Updates Information only available for Geneall Plus. Please Login or Register.