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. After the Habsburgs received nothing from the decree of the Golden Bull in 1356, he gave order to draw up the "Privilegium Maius", a fake document to empower the Austrian rulers.

Albert II, known as the Wise or the Lame, a member of the House of Habsburg, was duke of Austria and Styria from 1330, as well as duke of Carinthia and margrave of Carniola from 1335 until his death.