Koumura 【甲村】4 The Japanese surnames etymology dictionary.
Kagoshima-ken , Miyazaki-ken . Thing . From the small castle. Hiroshima - ken Akitakata - shi Koda - machi I tell him that because there was a small castle at Shimogomohara, it was also called as a place name. Estimated in the Warring States Period. Shizuoka-ken Hamamatsu-shi Tenryu-ku was in the Edo era in Ueno. From the small castle gate of the gate division system that was in the Edo period. An example of the location of the gate. Kagoshima-ken Kagoshima-shi Higashimata-cho, Kagoshima-ken Aira-shi Hiramatsu.
※ Saga-ken originated in Ogi city. A place name with a record since the Nara period.