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".
Louis, Duke of Joyeuse (1694–1724)
Despite having been married, it was well known that he also contracted a secret marriage to Marie Anne de Bourbon in 1719. Marie Anne, known as "Mademoiselle de Clermont" was a daughter of Louis de Bourbon and Louise Françoise de Bourbon who was in turn an illegitimate daughter of Louis XIV and Madame de Montespan. Marie Anne was also the head of the future Queen's household.