Austrians
Historically, Austrians were regarded as ethnic Germans and viewed themselves as such. Austria was part of the Holy Roman Empire and the German Confederation until the Austro-Prussian war in 1866 which resulted in Prussia expelling Austria from the Confederation. Thus, when Germany was founded as a nation-state in 1871, Austria was not a part of it. In 1867, Austria was reformed into the Austro-Hungarian Empire. After the collapse of the Austro-Hungarian Empire in 1918 at the end of World War I, Austria was reduced to a rump state and adopted and briefly used the name the Republic of German-Austria ("Republik Deutschösterreich") in an attempt for union with the Republic of Germany, but was forbidden due to the Treaty of Saint-Germain-en-Laye (1919). The First Austrian Republic was founded in 1919. The Third Reich annexed Austria with the "Anschluss" in 1938.
Austrians
After the French Revolution and the rise of Napoleon, the emperor Franz II formally founded the Austrian Empire in 1804 and became as "Franz I" the first Austrian emperor. For the first time the citizens of the various territories were now subjects of the one same state, while most of the German states, Prussia excluded, still cultivated their Kleinstaaterei and didn't succeed in forming a homogenous empire. Following Prussia's victory in the Austro-Prussian war in 1866, Otto von Bismarck successfully unified the German Empire in 1871, which was Prussian-dominated, without the inclusion of Austria and the German Austrians.