Duchy of Münsterberg
The Duchy of Münsterberg was conquered by Prussia in the course of the First Silesian War with Austria in 1742, nevertheless the Auerspergs at first could retain their possessions as a Silesian state country. In 1791 Karl Joseph of Auersperg finally sold Münsterberg to King Frederick William II of Prussia. In the same year, Emperor Leopold II elevated him to the Duke of Gottschee and the Auersperg owned County of Gottschee to the Duchy of Gottschee (German: "Herzogtum Gottschee", Slovene: "Kočevska Vojvodina"). Upon the dissolution of the Holy Roman Empire in 1806, the Auersperg territory at Tengen was mediatised to the Grand Duchy of Baden.