Leopold III, known as the Just, a member of the House of Habsburg, was duke of Austria from 1365. As head and progenitor of the Leopoldian line, he ruled over the Inner Austrian duchies of Carinthia,

Inner Austria was a term used from the late 14th to the early 17th century for the Habsburg hereditary lands south of the Semmering Pass, referring to the Imperial duchies of Styria, Carinthia and Car