Izu Province

Izu Province (伊豆国, Izu-no kuni^?) was a province of Japan in the area of Shizuoka Prefecture. Izu bordered on Sagami and Suruga Provinces. Its abbreviated form name was Zushū (豆州^?).

The mainland portion of Izu Province, comprising the Izu Peninsula is today the eastern portion of Shizuoka Prefecture and the Izu Islands are now part of Tokyo.

In 680 A.D., two districts of Suruga Province, Tagata District and Kamo District, were separated into the new Izu Province. At some point between the year 701 and 710, Naka District was added. The capital of the new province was established at Mishima, which also had the Kokubun-ji and the Ichinomiya (Mishima Taisha) of the province. Under the Engishiki classification system, Izu was ranked as a "lesser country" (下国). Under the ritsuryō legal system, Izu was one of the preferred locations for exile for those convicted of political crimes by the Heian period court.

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