I cannot find a reference to a Julie Palffy from the mid 1800s, save for one born in 1864 which is probably a little after this photo was taken (the sitter's daughter?).
Carte de visite from eBay.
Julie Palffy wears a sparsely decorated crinoline day dress with jacket bodice and modified banana sleeves in this Kozics photo.
Keywords: Kozics, Palffy family, Austrian, curly coiffure, high neckline, collar, jacket bodice, buttons, long close sleeves, crinoline, ruching