Etymology and distribution of 桒山.

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

Fukuoka-ken , Okayama-ken , Ooita-ken .

① There is a man's name including "是". Fukuoka-ken Itoshima-shi In Takada during the Warring States Period, Fukuoka-ken Fukuoka-shi was in the Edo period in the vicinity of Harukichi Chuo (formerly Haruyoshi village). Fukuoka-ken Nakama-shi Uetishino is based.

② Okayama-ken Akaiwa-shi birth origin. A place name with a record since the Edo period. Tell her that Mr. Akamatsu returned home from 1573 to 1592 (Tensho year) and changed the name using "是" of 是 里. 赤松 Akamatsu reference.