Konagai 【故長井】2 The Japanese surnames etymology dictionary.
Gunma-ken , Saitama-ken , Nagasaki-ken . There was a name of Fujiwara Fumihara in the Heian era poet. 藤原 reference. Gunma-ken Isesaki-shi Tabei-machi, Saitama-ken Kumagaya-shi It was in the Edo era on a small island. Nagasaki-ken Minamishimabara-shi Kannonzu-cho Otsuka is based. Shimane-ken Matsue-shi The Tate -emon was in the Edo era in the Songji Samurai of the Clan office.