She remarried with Agénor, 11th duc de Gramont (then duc de Guiche) in 1878 who was the son of Agénor de Gramont, an ex-ambassador of Emperor Napoleon III. The will of her father was revoked and she received her inheritance at her father"s death, in 1886, which was enormous. The Duke and Duchess de Gramont lived in their hôtel particulier on the Champs Élysées where she would give parties for the cream of the aristocracy, and at their château de Vallière, near Paris. They had three children:
Antonia Corisande Emma Louise (1880–1977), who married Marquis Hélie de Noailles;
Louis-René (1883–1963), Comte de Gramont, who married Antoinette de Rochechouart-Mortemart.