without issue halted further progress, however. His younger brothers Albert III and Leopold III, who were to rule jointly under the Rudolfinische Hausordnung (Rudolfinian House Rules), began to quarrel ceaselessly and ultimately agreed to divide the Habsburg territories between them according to the 1379 Treaty of Neuberg. It was Leopold's descendant Frederick V of Austria, elected King of the Romans in 1440 and sole ruler over all Austrian lands from 1457, who reaped the fruit of Rudolf's efforts and laid the foundations of the Habsburg monarchy. Ancestry References Further reading Wilhelm Baum: Rudolf IV. der Stifter. Seine Welt und seine Zeit. Styria, Graz, 1996, External links Website of the Museum of the Roman Catholic Archdiocese of Vienna Rudolf 4 of Austria Rudolf 4 of Austria 14th-century dukes of Austria Rudolf 4 Rudolf 4 Rudolf 4 Dukes of Carniola Burials at St. Stephen's Cathedral, Vienna