Etymology and distribution of 以頭.

Itou 【以頭】^{レベル3
About 200}  The Japanese surnames etymology dictionary.

Oosaka-fu , Nagasaki-ken , Hyougo-ken . Distribution including Inomoto too. Terrain . 井本 a variant of 井本 . In Tanegashima of Kagoshima-ken, I lived near the river which was called the river of the well which supplies water to the merciful temple which was in Kagoshima-ken Nishinoomote-shi Nishi-cho, so that in 1607 (Keicho 12) Tell her that it was given from Hisashi Tanegashima, the warrior of the era, Azuchi Momoyama era and Edo era. The pronunciation is Inomoto. It was in the Edo period in Nagasaki-ken Hirado-shi . In the same place Nagasaki-ken Hirado-shi Iwakuni- machi tells that the clan san of Haneda called from the place name. Period, location unknown. The pronunciation is Inomoto.