Paulin Guérin – Etienne-Jacques-Alexandre Macdonald, Maréchal-duc de Tarente Château de Versailles

The picture has something of this: people, portrait, royalty, wear, man, leader, necklace, crown, sword, costume, military, veil, theater, monarch, jewelry, armor.
Perhaps it’s a painting of a man in a black uniform with a red sash around his neck and a red ribbon.