From the lost gallery's photostream on flickr.
Marie appears to be wearing a crinoline dress with mildly flared pagoda sleeves.
Keywords: Queen Marie Friederike of Bavaria, Princess, Queen, Hohenzollern family, Wittelsbach family, German, straight coiffure, high neckline, collar, lace, three quarter length full over-sleeves, long full under-sleeves, cuffs, vee waistline, crinoline, pin, brooch, fan