Henry, Duke of Carinthia, was a nobleman in the medieval period, known for his role in the Holy Roman Empire. He was part of the House of Sponheim and ruled over the region of Carinthia in present-day Austria. His reign was marked by efforts to strengthen local governance and maintain peace in the region. As a duke, Henry was involved in various political alliances and conflicts typical of the time. He played a significant role in the power dynamics of the Austrian territories and was a key figure in the struggles between local nobility and the imperial authority of the Holy Roman Empire.