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".
Louise Bénédicte de Bourbon
In 1710, she helped to plot the marriage of her sister, Marie Anne, "Mademoiselle de Monmorency", to the famous general Louis Joseph de Bourbon, "duc de Vendôme". For mercenary reasons, Louise Bénédicte wanted a marriage that would not produce any children. Upon the death of a childless Vendôme, Louise Bénédicte hoped that she or her children would inherit the duke's huge estate, which he had acquired as the grandson of the rich heiress, Françoise of Lorraine. At thirty-two, Marie Anne was considered past child-bearing age, and Vendôme was a well known homosexual, thirty years older than his prospective bride. As it happened, though, Louise Bénédicte got nothing. On the duke's death, Marie Anne was created Duchess of Étampes in her own right and inherited the Hôtel de Vendôme in Paris, where she died in 1718 from alcoholism.