Etymology and distribution of 正方.

Shouhou 【正方】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Toukyou-to , Yamaguchi-ken , Kanagawa-ken . Terrain . From the place which draws treasure and water. Fukui-ken Obama-shi The inside of the castle was the clan's owner of the Clan office, Niigata-ken Murakami-shi Honcho was in the Edo period at the clan of Murakami of the Clan Office. Ohama samurai told from Kyouto-fu Kyouto-shi that he came to 1673 (first year of the baby boomer) and renamed it from Yamagishi surname. 山岸 Yamagishi reference.