Etymology and distribution of 片長.

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

Kyouto-fu Kyouto-shi , Yamaguchi-ken . Shimane-ken Goutsu-shi Matsukawachimachi Village (formerly known as Kawakami (Kawanobori)) birthplace. Place name recorded from the Kamakura period to the Sengoku period. The place name was also written as "Kawakami", "Kawato", "Kawato".