Ekaterina Mikhailovna wears a gorgeous jacket with meticulous gold thread embroidery in this 1850 von Neff portrait. She lived from 1827 to 1894 and married Duke Georg August of Mecklenburg-Strelitz in 1851. Her brief Wikipedia article is here.
Keywords: 1850, von Neff, Romanov family, Mecklenburg-Strelitz family, Grand Duchess, Russian, straight coiffure, square neckline, waist band, bows, natural waistline, full skirt, brooch, bracelets