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.
Louis, Grand Dauphin
Louis died of smallpox on 11 April 1711, at the age of 49, predeceasing his father.Louis married Duchess Maria Anna of Bavaria on 7 March 1680. She was known in France as "Dauphine Marie Anne Victoire". Although the marriage was not a close one, the couple had three sons. The "Dauphine" died in 1690 and in 1695 Louis secretly married his lover Marie Émilie de Joly de Choin. His new wife did not acquire the status of Dauphine of France, and the marriage remained without surviving issue. Pregnant at the time of her marriage, Mlle de Choin gave birth to a son, who was secretly sent to the countryside; the child died aged two, in 1697, without having been publicly named.Thus, through Burgundy and Anjou, Louis ensured the continuation of the senior Bourbon line on the throne of France and the establishment of the Spanish Bourbon dynasty respectively.