A large keyhole mound at Tannowa in Misaki, also known as Tannowa Nisanzai Kofun. Together with nearby Sairyo Kofun it represents the monumental mounds of the Tannowa area, but their occupants and political relationship remain unresolved.
Finds & research
The moat and mound outline are visible, but the burial facility and grave goods are unknown.
Two views on the occupant
Archaeological view
The IHA Shoryobu 2014 excavation survey (Bulletin vol. 67, 2016) puts the current mound length at 173m with a restored estimate of about 180m (the base has been eroded by waves). Misaki Town official documents cite 200m as a pre-survey estimate. Front section 120m wide, rear circle 110m dia., built mid-to-late 5th century. A water-filled moat surrounds it. Because it is managed by the Imperial Household Agency, the burial facility and grave goods are unknown.
Imperial Household Agency view
The Imperial Household Agency designates and manages it as Udo-no-Haka, the tomb of Inishiki Irihiko, a son of Emperor Suinin. This official attribution must be distinguished from archaeological identification; the occupant has not been archaeologically established.
Field notes
About a five-minute walk from Tannowa Station on the Nankai Main Line. No parking is available. Entry into the Imperial Household Agency-managed area is prohibited; view it from the worship area and perimeter.