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Charlotte of Lorraine-Armagnac (6 May 1678 – 21 January 1757) was a Princess of Lorraine by birth and daughter of Louis, Count of Armagnac. She was known as Mademoiselle d'Armagnac.
Styled Mademoiselle d'Armagnac, she was a celebrated beauty at the court and was a favourite of Louis XIV and was described by Madame de Sévigné as a beautiful and likeable woman. After the marriage of her sister Marie to the Duke of Valentinois (future Prince of Monaco) the court paid close attention to the range of suitors that were offered to Charlotte. These included the famous Saint Simon; the Margrave of Ansbach, brother of the future Queen Caroline of Great Britain as well as various other French noblemen.
According to the Marquis de Crequy the princess was alongside the marquises grandmother ,"the two most exactly formalistic persons of the court and of the city, including the presidents of Mortier."
Another candidate was Louis Alexandre de Bourbon, Count de Toulouse, youngest son of Louis XIV and his mistress Madame de Montespan. Louis opposed the match and gave her a pension in return for her losses. She died unmarried having outlived her many siblings.
Dictionnaire de la noblesse, contenant les généalogies, l'histoire & la chronologie des familles nobles de France, l'explication de leur armes, & l'état des grandes terres du royaume, La veuve Duchesne, 1774, p 590
Lettres de madame de Sévigné, de sa famille et de ses amis, recueillies et annotées par m. Monmerqué, 1862, Oxford University, p 158