Rudolf IV "der Stifter" (the Founder) (November 1 1339 - July 27 1365) was a member of the House of Habsburg and Duke (self-proclaimed Archduke) of Austria from 1358 to 1365. Wikipedia
The definitive Wikipedia entry for Rudolf IV, Duke of Austria. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Rudolf_IV,_Duke_of_Austria
The definitive Wikipedia entry for Rudolf IV, Duke of Austria. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Rudolf_IV%2c_Duke_of_Austria