Etymology and distribution of 北小矢.

Kitakoya 【北小矢】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Niigata-ken Agano-shi · Toukyou-to . Niigata-ken Agano-shi Distributed in Yamazaki.

* Ibaraki-ken There was a case where the ceramics of the seven-day porcelain of the surname in the Edo era in Mito-shi had renamed to Xuan Family and lived in Ishikawa-ken Kanazawa-shi . 庵 Iori reference.