From Wikimedia. Her Wikipedia article is here.
Nathalie has aged and she has dressed herself in four visible layers plus a cap to ward off the cold in this portrait.
Keywords: Mituar, Countess, Duchess, Chernyshyov family, Galitzine family, Russian. curly coiffure, cap, lace, high enclosing neckline, chemise, high neckline, ruffles, bodice, vee neckline, collar, order bows, wrap