States of Austria states of Upper Austria and Lower Austria are essentially equivalent to what were since 1783/84 the two autonomous halves of the Archduchy of Austria, a principality which formed the empire's historic heartland. Salzburg is coterminous with the former Austro-Hungarian Duchy of Salzburg (the former Archbishopric). Similarly, the state of Carinthia descends from the Duchy of Carinthia, the state of Styria descends from the Duchy of Styria, and the state of Tyrol descends from the Princely County of Tyrol; these states had to cede territories to Italy and Yugoslavia when Austria emerged in its present form. Also, the state of Vorarlberg
Au, Vorarlberg Au, Vorarlberg Au is a town in the Bregenz Forest in the Austrian state of Vorarlberg, part of the district of Bregenz. The town belongs to the Bregenz Forest, more exactly to the "Hintere Bregenzerwald". Forty percent of its 45 km² area is covered with forest, 34.4% of the area is used as alpine pasture ("Almwirtschaft") and for other forms of alpine agriculture. The town itself is unlike others in the area, as it has no real centre. It consists of several districts, which are (in no particular order): Argenau, Wieden, Lugen, Lebernau, Rehmen, Schrecken, Kreuzgasse, Jaghausen, Am Stein, Argenstein,