Portrait of Prince H. Trubetskoy. 1826. H., m. 93, 5h76, 5 GTG Orest Adamovich Kiprensky (1782-1836)

The picture has something of this: wear, people, portrait, uniform, military, lid, veil, man, soldier, weapon, retro, army, war, vintage, sword.
Perhaps it’s a painting of a man in a military uniform with a bird on his head and a sword in his hand, in front of a cloudy sky.