Satellite tomb No. He of Daisen Kofun. At 87m long and 9.8m high at the rear circle, it is the largest scallop-shaped mound in the whole Mozu-Furuichi complex (World Heritage site; Agency for Cultural Affairs). The official World Heritage site dates it to the first half of the 5th century and the Agency for Cultural Affairs to the middle of the Middle Kofun period, while Sakai City dates it to around the late 5th century from cylindrical haniwa collected there. It was built against the outer moat on the west side of Daisen's rear circle, its axis pointing the same way as Daisen's. The rear circle is built in two tiers and a moat runs around it. The rear circle is administered by the IHA as a satellite tomb; the front section and moat are protected as part of the National Historic Site "Mozu Kofun Group". Constituent monument of the "Mozu-Furuichi Kofun Group" UNESCO WHS (2019).
Finds & research
The rear circle is under Imperial Household Agency administration, and the burial facility and grave goods have not been revealed.
Official status & archaeological view
Official status
Managed by the IHA as "Satellite Tomb No. He" (sixth satellite) of the Nintoku Mausoleum. Administered as a tobichi — a detached parcel of the main imperial mausoleum, separately enclosed and away from the main precinct. It is also one of the mounds of the National Historic Site "Mozu Kofun Group" (designated a Historic Site as "Maruhoyama Kofun" in 1972 and merged into the group in 2014); the front section and moat are managed by Sakai City.
Attribution (jitei): the Imperial Household Agency's determination of whose tomb it manages — separate from heritage designation.
Archaeological view
The Agency for Cultural Affairs dates it to the middle of the Middle Kofun period and the official World Heritage site to the first half of the 5th century, while Sakai City dates it to around the second half of the 5th century from the cylindrical haniwa collected there. It is larger than Magodayuyama (65m) and Tatsusayama (61m), also scallop-shaped mounds. Cylindrical haniwa have been collected from the mound.
Field notes
No entry to the rear circle, which is administered by the IHA; the mound can be viewed from the perimeter.