Charles Willson Peale, American, 1741-1827 – Portrait of Dr. Thomas Cadwalader Philadelphia Museum of Art

The picture has something of this: people, portrait, man, wear, indoors, lid, leader, cravat, royalty, music, authority, jacket, sit, vest, outfit.
Perhaps it’s a portrait of a man in a black suit and white hair sitting in a chair with a red curtain behind him.