Etymology and distribution of エヘサニ.

Ehesani* 【エヘサニ】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Ibaraki-ken , Nagano-ken , Toukyou-to .

① Gunma-ken Oura-gun Meiwa-machi Origin of Oku. A place name with a record since the Warring States Period.

② Nagano-ken Suwa-shi Birth of Yamato (Owa). A place name with a record since the Kamakura period. The place name was also written as "Ohwa", "Okawa".

③ Tochigi-ken Ootawara-shi Origin of Okawa. A place name with a record since the Edo period. Tell him that Mr. Owa resided in the same area. There is a belief that the place name was called "Otori SU".