Her genealogical sketch may be here. This is also called "Princess Avdotya Ivanovna Golitsyna, née Izmaylova (1780-1850)."
From hermitagemuseum.org-wps-portal-hermitage-digital-collection-01.+Paintings-168320-?lng=nl. The background had numerous flaws so it was redone using undamaged parts.
Anna is wearing a sheer over-dress and a darker under-dress. Both of her portraits are remarkable for showing little or no jewelry.
Keywords: Anna Nikolaevna Wiazemskaya, Anna Nikolaevna Galitzina, Wiazemsky family, Galitzine family, Russian, curly coiffure, bun, fan front over-bodice, off-shoulder scoop neckline, quarter length puffed sleeves, under-bodice, U-décolletage, belt, jeweled buckle, natural high waistline, A-line skirt, ruffles, wrap