During the Muromachi period, 'Okazaki' was established as a name for Minami Shirakawa, whereas 'Shirakawa' became to refer to Kita Shirakawa, the area on the north side of the Shira-kawa River.
室町時代には南白河においては、「岡崎」の呼称が定着し、「白河」という地名は白川の北側の「北白川」を指すようになっていく。