She originally was placed by her parents in the household of the young king Louis XIV.

Gabrielle and the duc d'Anjou remained close friends for the rest of their lives, even after he succeeded to the duchy of Orléans and became known at court as the notoriously flamboyant homosexual Monsieur.

Gabrièlle was with her sister during the French military tour when Madame de Montespan became Louis XIV's mistress.

She was also with the court when La Montespan gave birth to her daughter by Louis XIV, Mademoiselle de Nantes, at Tournai in June 1673.

Her daughter Diane married the homosexual Philippe Jules Mancini, duc de Nevers and nephew of Cardinal Mazarin.