Princess Ota's designated tomb in front of Empress Saimei's mausoleum at Kurumaki, Takatori. The mausolea list in a government written answer dates its designation to the Bunkyu era (1861–64).
Finds & research
The public sources consulted do not record a burial facility or finds for the designated tomb.
Official status & archaeological view
Official status
Managed by the IHA as the Ochi-no-Okanoe Tomb of Princess Ota, Emperor Tenji's daughter and consort of the future Emperor Tenmu (then Prince Oama), listed in the government's written answer on imperial tombs as "Consort of Emperor Tenmu, Princess Ota". It lies in front of Empress Saimei's mausoleum↗, matching the Nihon Shoki's "tomb before the mausoleum."
Attribution (jitei): the Imperial Household Agency's determination of whose tomb it manages — separate from heritage designation.
Archaeological view
Nara Prefecture's heritage database considers that Koshitsuka-Gomon Kofun in Asuka, together with Kengoshizuka, matches the Nihon Shoki's account of the Ochi-no-Okanoe Mausoleum and Princess Ota's tomb before it and is highly likely to correspond to that mausoleum; it is a separate site from the designated tomb.
Field notes
It is a tomb managed by the IHA; worship from the oratory.