A prefecturally designated mound at Iwauchi, Gobo. Its rich grave goods and unusual coffin fittings point to a high-ranking occupant; it is also known for a tradition identifying it as the tomb of the tragic Prince Arima.
Finds & research
A silver-wire-wrapped sword, a lacquered wooden box, hexagonal iron coffin-fittings, Sue ware, and more.
Two views on the occupant
Archaeological view
A terminal-period square mound in the Iwauchi group, up to about 19.3m per side and 3.2m high, with a moat on three sides. Its south-facing two-flanked corridor chamber yielded high-quality grave goods — a silver-wire-wrapped sword, a lacquered wooden box, and hexagonal iron coffin-fittings.
Imperial Household Agency view
Not an IHA mausoleum. A Wakayama Prefectural Historic Site (designated 1979). The occupant is unknown, but a tradition identifies it as the tomb of Prince Arima, executed for treason in 658.
Field notes
One mound of the Iwauchi group. Its date is given as early 7th century by the prefecture and mid-7th century or later by Gobo City. Follow protected boundaries and on-site signs.