Duke Henry of Carinthia was a nobleman who ruled in the region of Carinthia during the late 11th century. He belonged to the House of Sponheim and was known for his efforts to strengthen the power of his duchy. His reign was marked by conflicts with neighboring territories and the Holy Roman Empire. Henry was also involved in the political dynamics of the time, including alliances and rivalries with other nobles. His leadership contributed to the development of Carinthia as an important center in the Alpine region. He passed away in 1122, leaving a legacy that influenced the region's history.