Etymology and distribution of 居石.

Sueishi 【居石】^{レベル4
About 1,400}  The Japanese surnames etymology dictionary.

Hyougo-ken , Oosaka-fu , Toyama-ken . Terrain . From the valley and the forest. Hiroshima-ken Hiroshima-shi Naka-ku Kamamachi was in the Edo period in the Hiroshima samurai of the Clan office. Kyouto-fu Nantan-shi There is a transmission that Mr. Kobayashi who was the castle owner of Tahara castle in Tahara called it. Estimated in the Warring States Period. It is distributed in the same place. 小林 Kobayashi reference.

Iishi 【居石】^{レベル4
About 1,400}  The Japanese surnames etymology dictionary.

Ooita-ken , Fukuoka-ken , Oosaka-fu . Distribution including Shouno too. Shouno is the mainstream in Ooita-ken . It was in the Warring States Period in the vicinity of Ooita-ken Usa-shi (formerly Usa County). Niigata-ken Niigata-shi is Hino.

Oriishi 【居石】^{レベル4
About 1,400}  The Japanese surnames etymology dictionary.

Ooita-ken Saiki-shi · Wakayama-ken Nishimuro-gun Shirahama-chou · Chiba-ken . Ooita-ken Saiki-shi Distributed in Seongnam-cho.

※ In the southern part of Kyouto-fu (formerly Yamashiro country) there was Kunihiko's surname in Heian period.