Chiwata 【千綿】4 The Japanese surnames etymology dictionary.
① There is 中津 surname.
② Kyouto-fu Originated in Kyoto City (old: Heiankyo). A place name with a record since the Heian period. In the Niigata-ken Minamiuonuma-shi Palace, I told that I went to learn Kyouto-fu Kyouto-shi in the Edo period and renamed the island of Nakajima surname as "the capital". 中島 reference.