Habsburg Realms

The "Habsburg Realms" (German: Die Habsburger Reiche) (Hungarian: A Habsburg Királyságok) was the collective name used for the Kingdom of Austria, the Kingdom of Hungary and the Kingdom of Czechoslovakia when they were separately headed by the Habsburg crown between 1919 and 1934. The Habsburg crown would progressively stop reigning over the states as the nazis would influence over these states: Austria was annexed by Germany in 1938 and Czechoslovakia in 1939, and Horthy removed the monarchy in Hungary due to axis pressure. Since then, it would remain in exilie in Switzerland, until it would be restored after the fall of the Eastern Bloc.

While each kingdom existed as their own sovereign state (all having separate constitutions and their own parliaments) Hungary, Czechoslovakia and Austria permitted the free movement of citizens and resources between each other. While the monarch's role remained effective in some aspects of executive power, their respective head of states and parliaments also shared a considerable amount of influence. The only instance in which the realms functioned as a single entity was in the League of Nations, this was in order to avoid the Habsburgs voting three times over the same topics.