Etymology and distribution of 琴川.

Kotokawa 【琴川】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Kanagawa-ken , Toukyou-to , Niigata-ken . Terrain . From the spine and the field. Kanagawa-ken Odawara-shi Maekawa is based. It was in the Edo period in the same place. Niigata-ken Sanjou-shi It was in Warring States Period in Kuribayashi. Tokushima-ken Tokushima-shi It was in Edo era at Shikanamachi. It tells that descendants of Mr. Hojo called in the same place. 北条 Houjou reference.

Baekje system ※. There was a case in which Mr. Shiki (Shigu) gave a surname by Shinano in 724 (the first year of Kamikura), 766 (Tenpyo Shingo 2nd year). ④ It is unknown whether the ratio exists.