An imperial mausoleum at Saga Mizuo Seiwa, Ukyo-ku, Kyoto, managed by the Imperial Household Agency as the tomb of Emperor Seiwa, the 56th emperor. Kyoto City's Ukyo Ward describes it as standing quietly on a mountainside a little away from the Mizuo hamlet.
Official status & archaeological view
Official status
Managed by the IHA as the mausoleum of Emperor Seiwa, the 56th emperor; the official form is a round tumulus (enkyu).
Attribution (jitei): the Imperial Household Agency's determination of whose tomb it manages — separate from heritage designation.
Archaeological view
The IHA visitor page does not give its archaeological size, construction date, or burial structure.
Field notes
About one hour on foot from JR Hozukyo Station; generally open 08:30–17:00. Follow current IHA guidance and on-site signs. The goryoin (mausoleum seal) is kept at the Momoyama Mausolea Office in Fushimi-ku, Kyoto, where visitors can use it free of charge (reception 8:30–17:00; staff may be unavailable on weekends, holidays, 29 Dec–3 Jan and some other days).