Her Russian-language Wikipedia article is here. Her husband's Wikipedia article is here.
From Wikimedia.
Nadezhda's dress shows the transition from crinoline to bustle. Her long curly coiffure, square neckline, and the fullness in back would continue, but the fullness of the rest of the skirt would subside.
Keywords: 1869, Gordigiani, Nadezhda Polovtsova, Romanov family, Yunin family, Polovtsov family, Russian, square neckline, modesty piece, lace, bows, cap sleeves, elbow length close sleeves, cuffs, bustle, crinoline, over-skirt, ruffles