Erfurt Union
With the failed attempt by the Frankfurt Parliament to include the Habsburgs in a newly unified German Empire, the Parliament turned to Prussia. Seeing Austrian ambivalence towards Prussia taking a more powerful role in German affairs, Frederick William began considering a Prussian-led union. All German states, excluding those of the Habsburgs, would be unified under Hohenzollern authority, and these two polities would be linked in an overarching political framework. Frederick William, therefore, did attempt to establish the Erfurt Union, a union of the German states except for Austria, but abandoned the idea by the Punctation of Olmütz on 29 November 1850, in the face of renewed Austrian and Russian resistance. The German Confederation remained the common government of German Europe.