Louise Marie Madeleine Fontaine
Louise-Marie-Madeleine Guillaume de Fontaine (after marriage known as Madame Dupin; 28 October 1706 – 20 November 1799) was a French "saloniste".
Louis Marie Florent du Châtelet
Having married, in 1777, , thereby becoming styled Countess by courtesy, it soon became apparent that she had married a homosexual. Thereafter she sought comfort elsewhere with Gilbert du Motier, marquis de La Fayette who had served in the American Revolutionary War together with her husband (François, comte de Simiane died on 27 March 1787). The Duke also had an affair with her for the decade prior to his death in 1793. She never remarried and spent the remainder of her years at , until her death (April 9, 1835).