Etymology and distribution of 關原.

Sekihara 【關原】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Tochigi-ken . Terrain . From the rope and the river. Tochigi-ken Haga-gun Haga-machi was in the Edo period in the supply department. Tell him that the west part of Okayama-ken western part (formerly Bizhon County) is Tsunagawa. Period, location unknown. Hiroshima-ken Fukuyama-shi Marunouchi was in the Edo period in the Bingo Fukuyama Samurai of the Clan Office. Tochigi-ken Haga-gun Ichikai-machi In Shiiya tells that descendants of Mr. Satake of Ibaraki-ken (formerly Hitachi country) called from the place name. Estimated in the Edo period. Location unknown. 佐竹 Satake reference.