Henry II, Duke of Austria was a prominent nobleman in the 12th century, known for his role in the expansion of the Babenberg dynasty. He ruled from 1141 until his death in 1177, overseeing a period of growth and consolidation in Austria. His leadership helped establish the region's importance within the Holy Roman Empire. Henry II was also known for his military prowess and involvement in various conflicts, including the Hungarian campaigns. He was a key figure in the political landscape of his time, fostering alliances and strengthening the power of the Austrian duchy through strategic marriages and territorial gains.