Etymology and distribution of 関城.

Sekishiro 【関城】^{レベル3
About 60}  The Japanese surnames etymology dictionary.

Gifu-ken , Aichi-ken , Hiroshima-ken .

① Convention . The abbreviation of Toki. Gifu - ken Toki - shi is based in Toki - gitsu Toshiguchi. As the county name of Toki-gun 676 (Emperor Tenmu 5th year) the name of the place recorded with the notation "礪」 ". "Toki is the real name" means. 土岐 Toki reference.

② Origin of Hiroshima-ken Onomichi-shi Mukojima cho Doi (Doi). Place name unknown record era. Meaning "Doi is a book." It is based in the same place.

③ Topography . From the soil. Fukui-ken Oono-shi In Shorin , tell him that he lived in the Kamakura period and was engaged in agriculture.