The Seiwa Genji clan zealously worshipped him as a god of war. The Seiwa Genji were a powerful line of the Minamoto clan of Japanese nobility for hundreds of years, tracing their lineage back to the Emperor Seiwa. The Kamakura and Ashikaga shogunates were both descended from the Seiwa Genji, and the Tokugawa shogunate claimed the lineage as well.