The Japanese surnames etymology dictionary.
Ooita-ken , Hokkaidou , Hyougo-ken . Thing . From the moon. Samurai 's brother' s brother who was defeated in the battle during the Warring States period tells that in Kyushu, he was called to keep the full moon that he saw as his brother met again towards Ezo. Ooita-ken Ooita-shi Shimodo Next Ouchi is based. Hyougo-ken It was in the Ikuno-cho of Asago-shi during the Edo period.