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".
Marguerite Louise d'Orléans
At Saint-Mandé, Marguerite Louise underwent a transformation: she was no longer interested in her former "excesses", but busied herself with reforming the convent, which she called a "spiritual brothel". The absentee mother superior, who wore men's clothing, was sent away, nuns who departed from the rule were removed. In this way, Marguerite Louise's behaviour ceased to be a bone of contention with Florence. Marguerite Louise's health began to decline in 1712, with an attack of apoplexy, which left her with a paralysed left arm and foaming mouth. She soon recovered, only to suffer another attack the next year; the death of the only one of her three children she cared for, Grand Prince Ferdinando, contributed to the second attack of apoplexy, which briefly paralysed her eyes and made speech difficult. The Regent of France, Philippe d'Orléans, allowed Marguerite Louise to buy a house in Paris at 15 Place des Vosges, where she spent her final years. She corresponded with the Regent's mother, Elizabeth Charlotte of the Palatinate, and gave assiduously to charity. Marguerite Louise d'Orléans, Princess of France and Grand Duchess of Tuscany, died in September 1721, and was buried in the Picpus Cemetery, in Paris.