Louise Marie Madeleine Fontaine
On 9 October 1749 at the Church of Saint-Sulpice, Paris, Jacques-Armand Dupin married with Louise-Alexandrine-Julie de Rochechouart-Pontville. But for Louise and her husband, their son was a source of many troubles, especially when he ran up debts of very large sums of money from gambling. His father had to sell many of his assets in 1750 to honor the debt of his son. The troubles with Jacques-Armand, however, continued. Claude Dupin was forced to obtain against him a "Lettre de cachet", who imprisoned Jacques-Armand in the fortress of Pierre Encise under the pretext of madness. After this, the family decided to send him to the Île Maurice (26 October 1765), where he remained for the next two years until his death on 3 May 1767, a victim of yellow fever. Before embarking on the "Count of Artois", a merchant ship of the French East India Company, Jacques-Armand reportedly revealed to his mother the existence of an illegitimate daughter of his, called Marie-Thérèse Adam, whose origins, however, remained mysterious. Nevertless, Madame Dupin took care of the child and raised as her own, later becoming in her reader and heiress. Louise considers Marie-Thérèse as her own daughter and educated after her own image, transmitting her high culture and elegance of her manners. Marie-Thérèse Adam was entirely dedicated to Madame Dupin and remained at her side until the last moment.
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.