Emperor Seiwa
The actual site of Seiwa's grave is known. The emperor is traditionally venerated at the "misasagi" memorial shrine in the Ukyō-ku ward of Kyoto. The Imperial Household Agency designates this location as Seiwa's mausoleum. It is formally named the or Seiwa Tennō Ryō. From the site of his tomb the Emperor Seiwa is sometimes referred to as the . The "kami" of Emperor Seiwa is venerated at the Seiwatennō-sha in close proximity to the mausoleum.