Kokubu Kofun

Japanese: 国分古墳 - こくぶこふん

This keyhole-shaped tumulus was located in Sakurai, Imabari City, Ehime Prefecture. It was built facing north on the eastern ridge of an independent hill overlooking Hiuchi Nada, known as Karakoyama. Its total length is 44m, with a diameter of 25m at the rear mound and a width of 12m at the front. The tumulus was destroyed without undergoing excavation. There is thought to have been a pit-type stone chamber in the rear mound, and excavated items include a triangular-rimmed divine beast mirror, a four-beast mirror, jewels, bronze arrowheads, swords, agricultural tools, and Hajiki ware. Both mirrors are Chinese. The triangular-rimmed divine beast mirror is the Gosaku Three Gods and Three Beasts Mirror, and a similar mirror also exists.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

愛媛県今治市桜井に所在した前方後円墳。唐子山と呼ぶ，燧（ひうち）灘にのぞむ独立丘陵の東部尾根上に，北面して築かれていた。全長44m，後円部径25m，前方部幅12mをはかる。古墳は発掘調査を経ずに破壊された。後円部に竪穴式石室があったらしく，また出土品として，三角縁神獣鏡，四獣鏡，玉類，銅鏃，刀剣，農工具，土師器（はじき）が知られる。鏡はともに中国鏡である。三角縁神獣鏡は吾作三神三獣鏡で，同笵鏡が存在する。

出典　株式会社平凡社世界大百科事典第２版について　情報

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