★ World Heritage Habikino / Fujiidera, Osaka Keyhole-shaped mound

Minegatsuka Kofun

LocationHabikino / Fujiidera, Osaka
ShapeKeyhole-shaped mound
Mound length96 m
PeriodEarly 6th c.
World HeritageMozu-Furuichi Kofun Group (UNESCO)

Overview

A 96m national historic site (terminal-phase Furuichi group). Nationally famous for the 1991 excavation that yielded over 3,500 artifacts from the horizontal stone chamber: gilt-bronze crowns, shoes, horse gear, armor, iron implements, beads, and bronze mirrors—evaluated as royal-class grave goods. A key late-period mound dated to the early 6th century. The contrast between the relatively modest mound size (96m) and the extraordinary quality and quantity of grave goods symbolizes a terminal-phase burial culture in which wealth was expressed through elaborate furnishings rather than massive earthworks. Exterior viewing is available to the public.Constituent monument of the "Mozu-Furuichi Kofun Group" UNESCO WHS (2019). The name "Minegatsuka" (Mound on the Peak) reflects the mound's elevated position on the plateau. The 3,500+ artifacts are the most from any single Furuichi group excavation, directly attesting to the occupant's power and wealth. Finds are held and displayed at the Habikino City Library/Museum complex. The early-6th-century date coincides with Emperor Keitai's accession (507 CE), making this a mound of special significance as evidence of the power transition during that pivotal historical juncture.

Finds & research

A 1991 excavation by Habikino City Board of Education detected a stone chamber near the summit of the rear circle. Over 3,500 artifacts were recovered, including swords, spears, iron arrowheads, armor (kake-yoroi and short cuirasses), horse gear, mirrors (triangular-rimmed deity-beast type), and beads — an exceptionally large assemblage for an early 6th-century mound. A FY2022 excavation yielded a second example of kasagata (hat-shaped) wooden objects, the first since the Emperor Ojin Mausoleum, generating national attention. Some finds are displayed at the Habikino City Museum.

Two views on the occupant

Archaeological view
Excavations in 1991 yielded over 3,500 artifacts from a horizontal stone chamber. Major finds: gilt-bronze crown, gilt-bronze shoes, gilt-bronze heart-leaf horse-tail ornaments (ginyo), iron armor, horse gear, glass beads, crystal beads, amber beads, bronze mirrors, and pottery. The extraordinary quantity and quality of the grave goods are considered commensurate with a royal burial; the mound is evaluated as the tomb of the supreme power-holder in the terminal phase of the Furuichi group. Dated to the early 6th century (c. 500–520s), relatively late in the Furuichi group sequence. The occupant is unknown, but some researchers suggest a figure connected to the power transition around Emperor Keitai's accession.
Imperial Household Agency view
Not managed by the IHA. Administered by Habikino City as a national historic site. Not listed in the IHA register. Excavation in 1991 was conducted by the Habikino City Board of Education. The exceptional quality of the finds established its high archaeological significance, leading to its designation as a National Historic Site in 2001.
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Sources

羽曳野市教育委員会UNESCO(2019)百舌鳥・古市古墳群 公式サイト

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