Count Michel Regnaud de Saint-Jean-d’Angely (1761-1819) Francois Pascal Simon Gerard (1770-1837)

The picture has something of this: people, wear, furniture, portrait, man, facial expression, woman, seat, room, outfit, royalty, music, performance, pants, indoors, musician, outerwear.
Perhaps it’s a painting of a man in a black coat sitting at a table with a green tablecloth on it and a red chair in front of him.