Oil on canvas. Dimensions: 35 x 25 cm. In a gilt Louis XV frame. A bust portrait executed with sobriety and elegance, where the figure emerges powerfully against a dark background that enhances the luminosity of the face and the delicacy of the flesh tones. Marie-Anne de Châteauneuf, famous as Mademoiselle Duclos, is depicted in her youth, without theatrical trappings, in an intimate image that departs from the typical stage iconography of actresses of her time. The model was one of the leading figures of the Comédie Française. She debuted on October 27, 1693, in the role of Justine in Géta, a five-act tragedy by Nicolas de Péchantré, and remained on the stage until 1733. She died in 1748, leaving a profound mark on French theater. While Nicolas de Largillierre portrayed her as Ariadne, emphasizing her status as a performer, this work dispenses with professional references and offers a more personal and refined vision. Nattier, the undisputed master of the gallant portrait during the reign of Louis XV, demonstrates here his ability to combine courtly elegance with naturalness. The brushwork is soft, the modeling delicate, and the expression restrained, highlighting the grace and charm that made the actress famous. The lighting, concentrated on the face, underscores the youthful freshness and psychological subtlety of the portrait. Provenance: Gustave Mühlbacher Collection (label on the reverse referencing the Daru, Alexandre Dumas, Mühlbacher auction); Miami, Florida, USA, Antique Show, February 2, 1996; private collection, Chicago, Illinois, USA. Exhibition: Exposition Universelle, Paris, 1878 (also mentioned on the reverse label). Bibliography: Jouin, M. Henry, Exposition Universelle de 1878, à Paris. Notice Historique et Analytique des Peintures, Sculptures, Tapisseries, Miniatures, Émaux, Dessins, etc. Exposés dans les Galeries des Portraits Nationaux au Palais du Trocadéro, Paris, 1879, p. 150. Mühlbacher, Gustave, Catalog des Tableaux, Dessins, ...