Charles I of Austria
Charles I or Karl I (Karl Franz Joseph Ludwig Hubert Georg Otto Maria; 17 August 18871 April 1922) was the last Emperor of Austria, the last King of Hungary (as Charles IV, ), the last King of Bohemia (as Charles III), and the last monarch belonging to the House of Habsburg-Lorraine. After his uncle Archduke Franz Ferdinand of Austria was assassinated in 1914, Charles became heir presumptive of Emperor Franz Josef. Charles I reigned from 1916 until 1918, when he "renounced participation" in state affairs, but did not abdicate. He spent the remaining years of his life attempting to restore the monarchy until his death in 1922. Beatified by Pope John Paul II in 2004, he is known to the Catholic Church as Blessed Karl of Austria.
Rudolf II, Duke of Austria
In compensation Rudolf II was designated as future King of the Romans and his father appointed him a "Duke of Swabia" - more or less an honorific title, as the former stem duchy had been in long-term disarray after the last Hohenstaufen duke, the underage Conradin, was killed in 1268. In Swabia the former Counts of Habsburg only held various smaller home territories, later summed up as Further Austria, of which Rudolf II never got hold.