This portrait is also called that of Princess Avdotya Ivanovna Golitsyna, née Izmaylova.
From museum's Web site; spots, cracks, and flaws removed with Photoshop.
The Empire style makes a last stand with a slight A-line skirt replacing the the olumnar skirts of earlier decades. She wears dual sleeves with the outside sleeves made of the sheerest material. The next layer of sleeves are notched and come from her bodice. Her inner-most sleeves appear to be part of her chemise.
Keywords: Chéradame, Anna Nikolaevna Wiazemskaya, Anna Nikolaevna Galitzina, Wiazemsky family, Galitzine family, Russian, curly coiffure, lace-edged veil, floral headdress, lace lappets, bodice, vee décolletage, chemise, modesty piece, trapezoidal neckline, quarter length puffed under-sleeves, dual upper-puffed sleeves, long full over-sleeves, quarter length full notched middle sleeves, waist band, knots, tassels, A-line skirt