Etymology and distribution of 北紺.

Kitakon 【北紺】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Nagano-ken , Niigata-ken , Toukyou-to . Nagano-ken Nagano-shi Wako Uchijima (Ushima -jima ) is a place name with a record since the Edo period. It is based in the same place. Nagano-ken Chikuma-shi Tokura (Togura) is a place name with a record in the notation of "Journal" in the North and South morning era. It is distributed in the same place. Nagano-ken Chikuma-shi Kurasu is a place name with a record since the Heian period. It was in the Edo period in the same place.