Cosimo III de' Medici, Grand Duke of Tuscany
Few expected the marriage to succeed, as Charlotte Aglaé had no desire to leave France. Her distant cousin, Marguerite Louise d'Orléans, who had previously been wedded against her will to Cosimo III de' Medici, Grand Duke of Tuscany in 1661, had suffered through a disastrous marriage. Eventually, Marguerite was forced to return to France in disgrace. People assumed that the same fate awaited Charlotte Aglaé. The Grand Duchess noticed the similarities between herself and her younger cousin and, unable to deal with the situation, refused to speak to Charlotte Aglaé about her impending nuptials: