Jean-Baptiste Perronneau (c.1715-1783) – Landgrave Charles of Hessen-Kassel Part 3

The picture has something of this: people, portrait, wear, man, facial expression, leader, veil, side view, elderly, outerwear, facial hair, profile, royalty.
Perhaps it’s a painting of a man in a red uniform with a green sash around his neck and a hat on his head and a cane in his left hand.