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Holy Roman Emperors, Archdukes of Austria

The abdications of Charles V in 1556 ended his formal authority over Ferdinand and made him suo jure ruler in Austria, Bohemia, Hungary, as well as Holy Roman Emperor.

Ferdinand's inheritance had been split in 1564 among his children, with Maximilian taking the Imperial crown and his younger brother Archduke Charles II ruling over Inner Austria (i.e. the Duchy of Styria, the Duchy of Carniola with March of Istria, the Duchy of Carinthia, the Princely County of Gorizia and Gradisca, and the Imperial City of Trieste, ruled from Graz). Charles's son and successor Ferdinand II in 1619 became Archduke of Austria and Holy Roman Emperor as well as King of Bohemia and Hungary in 1620. The Further Austrian/Tyrolean line of Ferdinand's brother Archduke Leopold V survived until the death of his son Sigismund Francis in 1665, whereafter their territories ultimately returned to common control with the other Austrian Habsburg lands.