First Austrian Habsburg Monarchy[]
- Francis Joseph I (1850-1916)
- Charles I (1916-1918)
Prussian Hohenzollern Monarchy[]
- William I (1929-1941)
- William II (1941-1945)
Second Austrian Habsburg Monarchy[]
- Otto I (1948-2011)
- Charles II (2011-2038)
- Ferdinand I (2038 onward)
