A kofun in Sumida-cho, Hashimoto City — the area traditionally associated with the discovery site of the National Treasure "Human-figure Bronze Mirror" kept at Sumida Hachimangu Shrine. The mirror is among the most critical documents of ancient Japan–Baekje diplomatic relations.
Finds & research
Traditional site of the National Treasure "Sumida Hachimangu Human-figure Bronze Mirror" (d. 19.9 cm), 48-character inscription referencing "Shima" (identified as King Muryeong of Baekje). Now owned by Sumida Hachimangu Shrine.
Two views on the occupant
Archaeological view
A Terminal Kofun period (7th-century) round mound (~16m dia., ~5.5m high) in Sumida-cho, Hashimoto City, with a two-sided horizontal stone chamber of cut chlorite schist opening to the southeast. A Hashimoto City Historic Site. The adjacent Sumida Hachimangu Shrine preserves the National Treasure "Sumida Hachimangu Jinbutsu Gazo-kyo" (Human-figure Bronze Mirror, d. 19.9 cm), traditionally said to have come from a kofun in this area. The mirror inscription references "Mizunoto-Hitsuji" year and "Shima," widely identified as King Muryeong of Baekje (r. 501–523 CE).
Imperial Household Agency view
Not designated as an IHA mausoleum or reference site. Hashimoto City Historic Site.
Field notes
Best combined with a visit to Sumida Hachimangu Shrine. About 20 min walk from JR Wakayama Line "Sumida" Station. The National Treasure mirror is generally not on public display but may be exhibited at special events.