From Wikimedia.
Tatiana wears a dress of luxurious velvet with a striking white double sheer collar in this 1816 Reichel portrait.
Keywords: 1816, Reichel, Tatiana Vasilievna Golitsyn, Vasilchikov family, Galitzine family, Duchess, Russian, curly coiffure, feathered hat, high vee neckline, collar, upper puffed close sleeves, waist band, bows, Empire low waistline, close skirt, wrap