In 1725, she as well as her sister Henriette-Louise was among the women suggested by her brother, the then Prime minister, as queen of France by marriage to Louis XV.

[1] In the end, her sister was also refused and Maria Leszczyńska, one the candidates removed when the list was reduced to 17, was chosen instead.

She was, however, a great friend of the king's mistress, the famous Madame de Pompadour, who had been introduced at court by Alexandrine's older sister and namesake, Louise Élisabeth.

To raise that sum, she sold the estate and seigneurie of Vallery, the traditional burial place of the Condé family, to M. and Mme.

By the time of her death, she had accumulated a large fortune from the old pensions originally assigned to her cousin, Mademoiselle du Maine (1707–1743), the daughter of Louis Auguste, Duke of Maine and his wife, the famous salon hostess Louise Bénédicte de Bourbon.