Jean-Marc Nattier – Joseph Bonnier de la Mosson National Gallery of Art (Washington)

The picture has something of this: people, man, reclining, portrait, woman, indoors, furniture, wear, royalty, sit, two, god, room, saint, seat.
Perhaps it’s a painting of a man in a brown suit and white shirt sitting in a chair with a book in his lap and a flag in the background.