Sunpu Castle
After Tokugawa Ieyasu retired to Sunpu Castle, he continued to maintain the fortifications on Mount Kunō. After his death, Tokugawa Hidetada ordered that he be buried on its peak, and had the first shrine buildings erected. The 3rd "shōgun", Tokugawa Iemitsu, relocated Ieyasu's grave to the Nikkō Tōshō-gū, but a portion of his deified spirit was held to still reside on Mount Kunō. The shrine was kept in good repair by the Sunpu jōdai until the Meiji Restoration.