Prince Alexandre was born in Paris on 27 April 1773.
[1] He emigrated to Koblenz on the French Revolution but rallied to Napoleon and accepted the title of comte de l'Empire.
He was made a peer of France in 1815 by King Louis XVIII.
Through his son Alphonse, he was a grandfather of Paul Antoine Jean Charles, Prince-Duke of Bauffremont-Courtenay (1827–1893), who married, and divorced, Countess Valentine de Riquet de Caraman-Chimay, the younger daughter of Belgian diplomat and industrialist Joseph de Riquet de Caraman, 17th Prince de Chimay.
[3][4] Through his son Théodore, he was a grandfather of Anne Antoine Gontran de Bauffremont-Courtenay (1822–1897), who married Noëmie d'Aubusson de La Feuillade.