The House of Sponheim was a noble family in the Holy Roman Empire, primarily known for its influence in the region of Carinthia and Styria. The family rose to prominence in the 12th century and played a significant role in the politics and governance of these areas. They were known for their strong ties to the Habsburgs and their involvement in various territorial disputes. Members of the House of Sponheim held various titles, including Duke and Count, and were known for their contributions to the cultural and economic development of their territories. The family's legacy includes several castles and historical sites that reflect their importance in medieval European history.