As emperor, Frederick III took a leading role inside the family and positioned himself as the judge over the family's internal conflicts, often making use of the "privilegium maius". He was able to restore the unity of the house's Austrian lands, as the Albertinian line was now extinct. Territorial integrity was also strengthened by the extinction of the Tyrolean branch of the Leopoldian line. Frederick's aim was to make Austria a united country, stretching from the Rhine to the Mur and Leitha.