Portrait of the Marquise de Narbonne Francois-Hubert Drouais (1727-1775)

The picture has something of this: portrait, people, woman, dress, costume, fashion, beautiful, model, girl, person, face, fantasy, hair, lady, wear, dark, princess.
Perhaps it’s a portrait of a woman in a white dress with a white hairdow and a white flower in her hair is shown in a black circle.