Portrait of Count Illarion Vorontsov Fyodor Rokotov (1735-1808)

The picture has something of this: people, portrait, wear, necklace, royalty, jewelry, profile, woman, jacket, man, leader, facial expression, veil, monarch, outerwear, choker.
Perhaps it’s a close up of a painting of a woman in a red dress with a black bow on her head and her hair in a bun.