紀伊國
It was founded in the 7th century as a part of Nankaidō. In Nankaidō, Awaji Province was between Kii Province and Awa Province. Awaji means literally "Road to Awa", that is, the road to Awa Province from the central part of Japan. Awaji Province was divided into two districts: Tsuna no Kōri in the northern part and Mihara no Kōri in the southern part.