[1] In 1762, de Chimay was appointed dame du palais, the same position her mother served in as to Marie Leszczynska.

In January 1770, she began her service in the equivalent position of dame pour accompagner la dauphine to Marie Antoinette upon her arrival in France.

When Marie Antoinette became queen in 1774, she was again a dame du palais.

In September 1775, she replaced Anne de Noailles, whom the queen disliked, as première dame d'honneur.

De Chimay was described as reliable, dedicated and as having a good working relationship with Marie Antoinette, with whom she shared an interest in opera.