Etymology and distribution of 蒼下.

Kusamoto 【蒼下】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Hokkaidou , Saitama-ken , Kyouto-fu . Originated in the Hokuriku region (formerly Koshigaya). In the Asuka period there is a place name recorded with the notation "Takashi". "Yue" used. Ishikawa-ken Kanazawa-shi Marunouchi was in the Edo era at the Kaga clan in the Clan office.