- Founded by Radbot of Klettgau in Switzerland (11th century)
- Rudolph elected King of the Romans (1273)
- Ruled Austria (13th century - 1918)
- Ruled Holy Roman Empire 1440-1740 and 1765-1806
- Family split between Spanish and German-Austrian branches (16th century)
- Also ruled Bohemia, Hungary, Croatia, Slavonia, Dalmatia, Portugal, Sicily, Lombardy-Venetia, Galicia-Lodomeria and Mexico