History of Austria
The House of Habsburg and House of Habsburg-Lorraine (Haus Österreich) dominated Austria from 1273 to 1918. In 1806, when Emperor Francis I of Austria dissolved the Holy Roman Empire, Austria became the Austrian Empire. It was also part of the German Confederation until the Austro-Prussian War of 1866. In 1867, Austria formed a dual monarchy with Hungary: the Austro-Hungarian Empire (1867–1918). Austria was reduced to the German-speaking areas of the empire (its current frontiers), after its collapse in 1918. It adopted the name The Republic of German-Austria. However, union with Germany and the chosen country name were forbidden by the Allies at the Treaty of Versailles. This led to the creation of the First Austrian Republic (1919-1933).