The Auersperg family ruled a portion of the Austrian Empire now located in Slovenia.
Removing shadows only reveals the dress has a vee waistline.
From jeannepompadour.tumblr.com/post/105198678557/portrait-of-an-unknown-noble-lady-perhaps-a. Also posted to the “Casual” Dress - 1641 to 1683 Album here.
The full hurluberlu coiffure marks this as 1870s. The large brooch and sleeve ornaments are of interest.
Keywords: Almanach painter, Auersperg family, hurluberlu coiffure, fitted bodice, off shoulder scoop neckline, sheer bertha, brooch, jeweled bodice ornaments, quarter length full upper sleeves, jeweled sleeve ornaments, lace flared cuffs, three quarter length full virago sleeves, arm bands, bows, vee waistline