Etymology and distribution of 關根.

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

Shimane-ken Izumo-shi , Fukushima-ken Sukagawa-shi .

① Shimane-ken Izumo-shi birthplace of Tsunematsu-cho. In the Kamakura period, there is a place name with the notation of "Tsunematsu" recorded.

② Originated from Fukushima-ken Tomura-shi Tokoname (Tokiwa) town. Place name with a record since the North / South morning era. The place name was also written as "Tokiwa". Fukushima-ken Sukagawa-shi tells that Mr. Akamatsu who came to Ikise gun in Fukushima-ken changed his red color from " common " to "regular" and camouflaged him. Estimated Muromachi era. 赤松 Akamatsu reference.