Etymology and distribution of 正一.

Shouichi 【正一】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Ooita-ken Usuki-shi , Ooita-ken Ooita-shi . Distribution including Takuwa. Occupation . In Aichi-ken tell Ooita-ken Usuki-shi in the meaning of "Samurai's birth". Estimated early in the Edo period. Ooita-ken Usuki-shi Usuki was in the Edo period in the Usuki clan in the Clan office. Ooita-ken Usuki-shi Nozu-machi Ohka Maenakaichi, Nozu-cho Ohtsuki Yoshida is based.

※ Han Chinese system . In the case of Kyouto-fu (formerly Yamashiro), Oosaka-fu Eastern (formerly Kawachi-kuni), there was a case in January 766 (December of Tenpyo Shingo December) who gave a surname of Takefu.

※ There is a record in September 767 (Tokugawa Jinguku first year August) at around Fukuoka-ken Munakata-shi (Old: Munakata District).