Austro-Italian ironclad arms race
Austria's defeat in the Seven Weeks War forced Austria to determine a new set of foreign and domestic policies for the future, as Austria's interests since the days of the Holy Roman Empire had primarily been found in Italy and Germany. The Empire thus reformed itself into the Austria-Hungarian Empire following the adoption of the Austro-Hungarian Compromise of 1867 (German: "Ausgleich"), which re-established the sovereignty of the Kingdom of Hungary and placed Hungarians within the Empire on an equal footing with Austrians. Under the "Ausgleich", Emperor Franz Joseph I would be crowned as King of Hungary, while a separate parliament at Pest with powers to enact laws for the lands of the Holy Crown of Hungary would be established.
Clemens August of Bavaria
Clemens August, who mostly sided with the Austrian Habsburg-Lorraine side during the War of the Austrian Succession, personally crowned his brother Charles VII emperor at Frankfurt in 1742. After Charles's death in 1745, Clemens August then again leaned toward Austria. Over time, Clemens August changed more frequently the alliances, as of Allied of Austria or France, also under the influence of his frequently changing First Ministers and high donations.