The Duke of Luynes is a territorial name belonging to the noble French house d'Albert. Luynes is, today, a commune of the Indre-et-Loire département in France. The family of Albert, which sprang from Thomas Alberti, seigneur de Boussargues, bailli of Viviers and Valence, and viguier of Bagnols and Pont-Saint-Esprit in Languedoc, acquired the estate of Luynes in the 16th century.
Portrait of the 1st Duke of Luynes, by Frans Pourbus the Younger
Portrait of Louis Charles d'Albert, 2nd Duke of Luynes
Portrait of the 3rd Duke of Luynes, by Hyacinthe Rigaud, 1707
Marie Aimée de Rohan was a French courtier and political activist, famed for being the center of many of the intrigues of the first half of the 17th century in France. In various sources, she is often known simply as Madame de Chevreuse.
Velázquez's The Lady with a Fan is purported to be a likeness of the duchess, although the features of the sitter differ remarkably from other extant portraits of Marie Aimée.