Kruger Franz – Portrait of Pyotr Andreyevich Shuvalov Hermitage ~ part 06

The picture has something of this: armor, military, people, helmet, portrait, sword, weapon, war, man, soldier, army, uniform, warrior, knight, crown, veil, skirmish, royalty.
Perhaps it’s a painting of a man in a military uniform with a medal on his left hand and his right hand in his other.