From tumblr.com/tagged/elizaveta-mavrikievna.
This photo with a small bustle was taken before Elisabeth of Saxe-Altenburg became Elizaveta Mavrikievna.
Keywords: Elizaveta Mavrikievna, Mavra, Elisabeth of Saxe-Altenburg, Princess, Grand Princess, Wettin family, Romanov family, straight coiffure, bangs, jacket bodice, high enclosing neckline, ruffles, long close sleeves, cuffs, tight skirt, drapery, fan