The Großdeutsche Lösung ("Greater German solution") favored unifying all German-speaking peoples under one state, and was promoted by the Austrian Empire and its supporters.
They also drew upon similar contemporary efforts to create a unified nation state of people who shared a common ethnicity and language, such as the Unification of Italy and the Serbian Revolution.
[citation needed] This rivalry between Austria and Prussia resulted in the War of the Austrian Succession, and then outlasted the French Revolution and Napoleon's domination of Europe.
On August 6, 1806, Habsburg Emperor Francis II abdicated the throne of the Holy Roman Empire in the course of the Napoleonic Wars with France.
The 1815 restoration by the Final Act of the Vienna Congress established the German Confederation, which was not a nation but a commonwealth association of sovereign states on the territory of the former Holy Roman Empire.
The Großdeutsche Lösung would have implied a dominant position for Catholic Austria, the largest and most powerful German state of the early 19th century.
Another complicating factor was the Austrian Empire's inclusion of a large number of non-Germans, such as Hungarians, Czechs, South Slavs, Italians, Poles, Ruthenians, Romanians and Slovaks.
The Czech politician František Palacký explicitly rejected the offered mandate to the Frankfurt assembly, stating that the Slavic lands of the Habsburg Empire were not a subject of German debates.
[citation needed] Thus, some members of the assembly, and Prussia in particular, promoted the Kleindeutsche Lösung, which excluded the whole Austrian Empire with its German and its non-German possessions.
On March 30, 1849, the Frankfurt parliament offered the German Imperial crown to King Frederick William IV of Prussia, who rejected it.
After the Peace of Prague, the Prussian Minister President Otto von Bismarck, now at the helm of German politics, pursued the expulsion of Austria and managed to unite all German states except Austria under Prussian leadership, while the Habsburg lands were shaken by ethnic nationalist conflicts, only superficially resolved with the Austro-Hungarian Compromise of 1867.
[citation needed] At the same time, Bismarck established the North German Confederation, seeking to prevent the Austrian and Bavarian Catholics in the south from being a predominant force in a mainly Protestant Prussian Germany.
[citation needed] The idea of Austrian territories with a significant German-speaking population joining a Greater German state was maintained by some circles both in Austria-Hungary and Germany.
But fascist Italy, despite its friendly relations with Hitler, strongly opposed any kind of merger of Austria into Germany, and pressured and threatened Austrian politicians from pursuing such a course.
[9][10] The Nazi regime made sure to prevent a possible defeat at the polls, given that contemporary estimates showed majority support to Austria's independence.
The legal and diplomatic intercourse between the Allies regarding the treatment of the German question brought forward the elements of intervention and coexistence which formed the basis for a relatively peaceful postwar international order.