After the revolution she focused on the education of her son, Astolphe-Louis-Léonor, Marquis de Custine, taking him to Italy and Switzerland.

A freethinker, she was a prominent literary and social figure during the Napoleonic era.

[4] Her father died in 1775 and her mother later remarried to Stanislas de Boufflers.

[4][6] During the French Revolution de Custine defended her father-in-law before the Revolutionary Tribunal.

She was imprisoned at Carmes Prison along with her husband and father-in-law but was later released after the fall of Maximilien Robespierre.