From Wikipedia; detail-enhanced by gogm.
Princess Adelaide Stroganova wears a dress with off shoulder straight neckline and puffed sleeves in this 1821 Sokolov portrait.
Keywords: 1821, Princess, Sokolov, Galitzine family, Stroganov family, Russian, hurluberlu coiffure, floral headdress, veil, puffed sleeves, cuffs, necklace, earrings, bracelets