An imperial mausoleum at Uzumasa Sanbi-cho, Ukyo-ku, Kyoto, managed by the Imperial Household Agency as the tomb of Emperor Montoku, the 55th emperor. A paper in the Architectural Institute of Japan's journal states that the practice of simple burial seen with Emperor Saga was carried on by Emperor Montoku.
Official status & archaeological view
Official status
Managed by the IHA as the mausoleum of Emperor Montoku, the 55th 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 17 minutes on foot from JR Uzumasa 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). Nearby imperial mausolea: Mausoleum of Emperor Koko↗, Mausoleum of Emperor Uda↗, Mausoleum of Emperor Murakami↗, Mausoleum of Emperor Enyu↗, Mausoleum of Emperor Ichijo↗, Mausoleum of Emperor Go-Suzaku↗ and Mausoleum of Emperor Go-Uda↗.