Louise Marie Madeleine Fontaine
Jean-Jacques Rousseau subsequently sent an inflamed letter to Madame Dupin, who returns him expressing her concern. This doesn't stop the writer for much and only the intervention of Louise's stepson put an end to his attentions. But Madame Dupin was hardly spiteful and some months after these incidents, takes Rousseau in her service and put him in charge of the education of her son Jacques-Armand for eight days pending for a new tutor. Subsequently, the Dupins taken Jean-Jacques Rousseau as secretary after their return from Venice in 1745, when he is not yet a writer and for a modest salary. His job was to take notes and research for the book projected by Madame Dupin, namely "the defense of women in the 18th century are discussed in minor ... until they died". Madame Dupin stood Rousseau almost to a subordinate or, in the words of Grimm and Marmontel, she gives him leave the day it receives academicians. Jean-Jacques Rousseau feels bitterness after leaving his job as a secretary in 1751, but will always keep good relations with the Dupin family. Madame Dupin provides financial support to his wife, Marie-Thérèse Levasseur, who gave birth to five children abandoned by Rousseau to the Foundling Hospital. As for Louis Claude Dupin, his bound with Rousseau came for their common passion for music. The stepson of Madame Dupin was interested in physics, chemistry and natural history, hoping to integrate the Academy of Sciences and the philosopher did write an unfinished book, popular science to "Institutions of Chemistry".
Louise Henriette de Bourbon
Among her extramarital affairs, she is said to have had a relationship with the Count of Melfort whom she met at the Château de Saint-Cloud after the birth of her son. During the Revolution of 1789, Philippe-Égalité publicly claimed that his real father was not his mother's husband at all but instead a coachman at the Palais-Royal.. This assertion was likely for political reasons to distance the ambitious Duke from the ancien regime. However recent DNA testing, to establish the Y-chromosome haplogroup and STR pattern of the House of Bourbon, has indeed confirmed the biological legitimacy of Louise Henriette's eldest son, Philippe-Égalité. As part of this project samples were taken from 3 living genealogical descendants of Louis XIII, namely Axel, Prince of Bourbon-Parma; Henri, Prince of Bourbon-Parma, and João Henrique, Prince of Orléans-Braganza. The former 2 are documented male line descendants of Philip V of Spain, who was a grandson of Louis XIV. The latter is a direct male line descendant of Philip I, Duke of Orleans - a younger brother of Louis XIV and the ancestor of Louise Henriette's husband. This study established that no non-paternity event happened along the three studied in-depth paternal lineages of these living donors, thus discounting rumors that the branch of Bourbon-Orleans could be illegitimate.