Leopold I, Margrave of Austria

Leopold I (also Luitpold; c. 940 – 10 July 994), known as the Illustrious (German: der Erlauchte) founder of medieval Austria was a member of the House of Babenberg who ruled as Margrave of Austria from 976 until his death. He was the first margrave of the Babenberg dynasty which ruled the March and Duchy of Austria until its extinction in 1246.

Source: Wikipedia — https://en.wikipedia.org/wiki/Leopold_I,_Margrave_of_Austria