So-called "portrait of Marie-Charlotte de La Porte de La Meilleraye, Marquise de Richelieu", Jacob Ferdinand Voet
So-called portrait of marie charlotte de la porte de la meilleraye (1662-1729) as diana, but it's probably a portrait of her aunt-in-law diane gabrielle damas de thianges (1656-1715)
identification proposed by user ecummenic (talk) based on the comparison with an oval portrait of this princess located in the piemonte (see image below). Date: circa 1675-1699 (approach based on the sitter's hairstyle). Medium: oil. Collection: Unidentified location.