Jean-Baptiste Mauzaisse – Francois-Joseph-Paul, Comte de Grasse (1723-1788) Château de Versailles

The picture has something of this: people, portrait, man, wear, elderly, leader, facial hair, mustache, music, lid, veil, royalty, retro.
Perhaps it’s a painting of a man in a suit with a red sash around his neck and hands in his pockets, wearing a red and gold.