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".
Françoise d'Aubigné, Marquise de Maintenon
In 1669, when Madame de Montespan's first child by Louis XIV was born, she placed the baby with Madame Scarron in a house on Rue de Vaugirard, and provided her with a large income and staff of servants. Françoise took care to keep the house well guarded and discreet, even doing the domestic duties herself. Her care for the infant Louis Auguste, Duke of Maine (born 1670) first brought her to the attention of Louis XIV, though he was initially put off by her strict religious practice. When Louis Auguste and his siblings were legitimized on 20 Dec 1673, she became the royal governess at Saint-Germain. As governess, she was one of very few people permitted to speak with the king as an equal, without holding back. Madame de Sévigné observed that he was charmed by having someone who would speak to him in this way.