Himeji, Hyogo Round mound

Miyayama Kofun (Himeji)

LocationHimeji, Hyogo
ShapeRound mound
Mound diameter30 m
Period5th c.
DesignationPrefectural Historic Site

Overview

A round mound immediately south of the Himeji Archaeology Center in Shigo. Its nationally designated grave goods include ornaments and Sue ware that suggest contacts with the Korean Peninsula.

Finds & research

Three pit-style chambers; two pairs of gold pendant earrings, a silver-inlaid gold-foil ring-pommel sword, pictorial-band deity-and-beast and crawling-dragon mirrors, swords, armor, and beads. The assemblage is nationally designated Important Cultural Property.

Official status & archaeological view

Official status
Hyogo Prefectural Historic Site (1973); the finds were designated Important Cultural Properties in 1998.
Archaeological view
A 5th-century round mound about 30m across with three pit-style stone chambers. Himeji City gives its height as about 2m, while the Agency for Cultural Affairs gives about 4m. City sources also disagree on the date: a 2026 city bulletin says the first half of the 5th century, while the city's school and community-area guides say the latter half. The first chamber was looted; the second and third yielded mirrors, gold earrings, swords, armor, and beads.

Field notes

About one minute on foot south of the Himeji Archaeology Center. Admission is free; it closes Mondays and on some other days. The center holds the finds, but they are not necessarily on permanent display, so check current exhibitions.

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Sources

姫路市 宮山古墳文化庁 国指定文化財等データベース・兵庫県宮山古墳出土品姫路市広報 2026年1月号(前半説・常設展示ではない旨)姫路市 四郷学院校区(後半説)姫路市埋蔵文化財センター 利用案内姫路市 見野の郷交流館周辺の地域(後半説)姫路市 県指定の記念物一覧(1973年指定)

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