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".
Élisabeth Marguerite d'Orléans
Known as "Mademoiselle d'Alençon" until her marriage, "Isabelle" (Élisabeth Marguerite) was acquainted with the young Louise Françoise de La Baume Le Blanc, who was to become duchesse de La Vallière, mistress of Louis XIV, and who grew up at Blois in the entourage of Isabelle's sister Marguerite Louise d'Orléans. It was assumed that Isabelle's older and more beautiful sister, Marguerite Louise, would marry Louis, and that Françoise Madeleine would marry another European prince. A possible match was one with Charles Emmanuel II, Duke of Savoy, who later married her younger sister on 4 March 1663.