Kamiyama 【上山】6 The Japanese surnames etymology dictionary.
Fukuoka-ken , Toukyou-to · Chiba-ken . Heterogeneity of 北原 . In Fukuoka - ken Chikugo - shi telling that he was renamed because Kitahara surname was many. Estimated in the Edo period. Fukuoka-ken Fukuoka-shi Chuo-ku Castle interior was in the Edo era in the Fukuoka clan in the clan office.