Toshima

Toshima lay in Ugo in northern Honshu. A historical district of that name, also written Tojima, lay around the Iwami River and lower Omono River.

During the Sengoku period the Hatakeyama family, using the name Toshima, held Toshima Castle and controlled land along those rivers. The Akita family later incorporated the district into Akita County. Under the early modern Akita domain it was administered separately as Toshima County; in 1664 the county was renamed Kawabe. Its history shows changes in local lordship and district administration.