Battle of Valmy
Her father was Jean Grimailh, from an old Sorèze family, and her mother was Étiennette-Rosalie Aldebert, descended from the noble family of Barrau de Muratel through her mother. Her maternal grand-uncle was David Maurice Champouliès de Barrau de Muratel, who commanded the first line of infantry at the Battle of Valmy (20 September 1792).