Lanfranco, Giovanni di Stefano – Los auspicios de un emperador romano Part 1 Prado museum

The picture has something of this: people, group, wear, woman, man, dancing, music, many, dancer, outfit, performance, theater, opera, costume, kneeling, Renaissance.
Perhaps it’s a painting of a group of people standing in front of a man in a white robe and a woman in a yellow dress and a white shawl.