Question: Leopold VI, was the Duke of Syria from 1194, and had the title of which medieval principality, of the Holy Roman Empire, from 1198 to his death in 1230?
Sentence (from "Duchy of Austria"): The Duchy of Austria (German: "Herzogtum Österreich" ) was a medieval principality of the Holy Roman Empire, established in 1156 by the "Privilegium Minus", when the Margraviate of Austria ("Ostarrîchi") was detached from Bavaria and elevated to a duchy in its own right.
Relevant evidence: Yes