She married Denis de Polastron 1758–1821, half-brother to Yolande de Polastron, countess, then duchess of Polignac, governess of the royal children (known as the Enfants de France) and intimate friend of the queen.
Polastron, Gers, a commune in the Gers département, in France
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Polastron, Haute-Garonne, a commune in the Haute-Garonne département, in France
Marie Louise d’Esparbès de Lussan, by marriage vicomtesse then comtesse de Polastron (Bardigues, 19 October 1764 – London, 27 March 1804) was a member of the Esparbès de Lussan family and the mistress of the comte d’Artois, who later reigned as Charles X of France.