Mme Pasca Léon Joseph Florentin Bonnat (1833-1922)

The picture has something of this: wear, woman, portrait, dress, fashion, people, veil, gown, model, fashionable, jewelry, collection, haute couture, necklace, theater, actress, music.
Perhaps it’s a painting of a woman in a white and black dress with a black and white shawl over her shoulders and a chair in front of her.