Maine, but Charlotte Aglaé refused. Shortly thereafter, Charlotte Aglaé went to live at the Château de Saint-Cloud with her paternal grandmother, Elizabeth Charlotte of the Palatinate, the Dowager Duchess of Orléans, who was known as Madame at court. Her grandmother made a pen portrait of her granddaughter at this time: Mademoiselle de Valois is not, in my opinion, pretty, and yet occasionally she does not look ugly. She has something like charms, for her eyes, her colour and her skin are good. She has white teeth, a large, ill-looking nose, and one prominent tooth, which when she laughs has a bad effect The Dowager Duchess of Orléans also said of her granddaughter that: She has a good deal of the Mortemart family in her, and is as much like the Duchess of Sforza, the sister of Montespan Her cousin, Louis Henri, Duke of Bourbon, proposed to her on behalf of his younger brother Charles de Bourbon, comte de Charolais. Charlotte Aglaé is said to have seriously considered the proposal but her parents refused outright. In 1718, Charlotte Aglaé began a romantic affair with Louis François Armand du Plessis, duc de Richelieu. In 1719, the duke was arrested and jailed in Hem, Nord, in connection with his participation in the Cellamare Conspiracy. Charlotte Aglaé visited the duke several times in prison. Wishing to marry him, she urged her father, the regent, to pardon him. Her elder cousin, Louise Anne de Bourbon, was another of the promiscuous Richelieu's conquests. The cousins, who had never been very close, became bitter enemies due to their simultaneous romantic involvement with the womanising duke. This enmity continued long after each amorous affair had ended. The young Louise-Anne was considered the most attractive daughter of Louis III, Prince of Condé. Marriage Against Charlotte Aglaé's wishes, the regent accepted an offer of marriage for his daughter that was proffered by Rinaldo d'Este, Duke of Modena, for his son and heir, Prince Francesco d'Este. Earlier projects to marry Charlotte Aglaé to either an English prince or to Charles Emmanuel III of Sardinia had failed. Her grandmother is known to have written to Charlotte Aglaé's aunt, Anne Marie d'Orléans, Queen of Sicily, on the marriage proposal. As a pre-condition to the liberation of Richelieu, her lover, it was decided that she would marry the heir of Modena. According to her grandmother's writings, her future husband had fallen in love with