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".
Adelaide Filleul, Marquise de Souza-Botelho
Her mother, Marie Irène Cathérine de Buisson, daughter of the Seigneur de Longpré, near Falaise, married a bourgeois of that town named Filleul. It was reported, though no proof is forthcoming, that Mme. Filleul had been the mistress of Louis XV and most royal genealogists give hers as his daughters, although never recognized. Her husband became one of the king's secretaries, and Mme. Filleul made many friends, among them Jean-François Marmontel. Their eldest daughter, Marie Françoise Julie Filleul (Château de Longpré, 1751Paris, 1822) married at the Château de Menars in 1767 Abel François Poisson, marquis de Vandières et de Marigny (1727–1781), the brother of Madame de Pompadour; Adélaïde-Émilie married on 30 January 1779 Alexandre Sébastien de Flahaut de La Billarderie, comte de Flahaut de La Billarderie, a soldier of some reputation, who was many years her senior.