At Yashimacho, Nara, this is designated as the mausoleum of Prince Sawara, posthumously Emperor Sudo. Its mausoleum tradition and the archaeological remains of the separate mound in front must be distinguished.
Finds & research
No finds from the designated mausoleum itself are established in the public sources checked; the megaliths in front belong to a separate corridor-chamber mound.
Two views on the occupant
Archaeological view
The IHA classifies the mausoleum as a round mound, but its archaeological date, burial facility, and finds are unknown in the public sources checked. The exposed megaliths in front belong to the separate Yashima-ryo-mae Kofun and should not be confused with the designated mausoleum's burial facility.
Imperial Household Agency view
Managed by the IHA as the Yashima Mausoleum of Emperor Sudo (Prince Sawara, Emperor Kanmu's brother, who died protesting his innocence in 785 and became the focus of vengeful-spirit worship; reburied and titled in 800). The "Eight Stones" before the tomb are exposed ceiling slabs of a late-kofun chamber.
Field notes
About 20 minutes on foot from JR Obitoke Station; worship from the oratory.