Etymology and distribution of 桑洞.

Kuwahora 【桑洞】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Kagoshima-ken Amami-shi , Hyougo-ken .

① Creation . From the favorable "Sakae". First letter surname of Amagi archipelago of Kagoshima-ken . Kagoshima-ken Ooshima-gun Isen-chou Agata , Kagoshima-ken Ooshima-gun It was in the Edo era in the Uken-son department . Iwate-ken Toono-shi tells that he changed his name at the time of Meiji New surname from Shinda surname, hoping to flourish. 新田 Nitta reference. Fukui-ken Oono-shi In Oyado say that he changed his name from Fukino surname. Meiji New Last name in estimation. 福野 Fukuno reference. Okayama-ken Okayama-shi Kita Ward Marunouchi was the Okayama Samurai of the Clan Office, Toyama-ken Toyama-shi Honmaru was in the Edo period in the Clan in Toyama of the Clan Office.

② Ishikawa-ken originated in Kaga-shi Eriya Town. A place name with a record since the Edo period. It is distributed in the same place.

③ Gifu-ken Takayama-shi Originated from Ryuugi's small shrine in Kiyomi-cho. Tell him that he changed the name from Sakano surname in the same place. Meiji New Last name in estimation. 坂野 Sakano reference.