Rudolf IV, Duke of Austria

Rudolf IV, also called Rudolf the Founder, was a scion of the House of Habsburg who ruled as duke of Austria, Styria and Carinthia from 1358, as well as count of Tyrol from 1363 and as the first duke of Carniola from 1364 until his death. He succeeded his father Albert II, Duke of Austria, who was not included among the seven imperial prince-electors by the Golden Bull of 1356. In order to acquire titles and honors higher than ducal, Rudolf commissioned the "Privilegium Maius", a forged document accompanied by several other forgeries, that were divised in order to elevate Austrian dukes to various titles, rights and privileges. The Emperor Charles IV refused to recognize and confirm the validity of those claims, but in spite of that, Rudolf started to use the archducal title by the middle of 1359, and continued to assert those claims until his death.