This is probably the most famous portrait of Empress Elisabeth, an 1865 Winterhalter showing her wearing a crinoline with diamond stars in her hair.
Upgrade image posted 20 October 2014 from happycatholic.blogspot.com/2014_09_01_archive.html.
This portrait is a crinoline dress icon.
Keywords: 1865, Winterhalter, Elisabeth of Bavaria, Sissi, Sisi, Wittelsbach family, Habsburg family, Empress, Austrian, long straight coiffure, off shoulder neckline, epaulettes, quarter length puffed sleeves, crinoline, hair jewelry, necklace, wrap, fan