Kōzuke Province (上野国 Kōzuke no kuni?) was an old province located in the Tōsandō of Japan, which today comprises Gunma Prefecture. It is often nicknamed Jōshū (上州?) or Jōmō (上毛?). Kōzuke and Echigo Province were known as the Jōetsu region.
The ancient provincial capital of Takasaki was near modern Maebashi. During the Sengoku period, Kōzuke was controlled variously by Takeda Shingen, Uesugi Kenshin, the late Hōjō clan, and Tokugawa Ieyasu.
- Gunma Prefecture
- Agatsuma District (吾妻郡)
- Gunma District (群馬郡)
- Kanra District (甘楽郡)
- Kanra District (片岡郡) - merged with Nishigunma District to become the new Gunma District on April 1, 1896
- Kitagunma District (北群馬郡) - split off from Gunma District on October 1, 1949
- Midono District (緑野郡) - merged with Minamikanra and Tago Districts to become Tano District on April 1, 1896
- Nawa District (佐波郡) - merged with Sai District to become Sawa District (佐波郡) on April 1, 1896
- Nitta District (新田郡)
- Ōra District (邑楽郡)
- Sai District (佐波郡) - merged with Nawa District to become Sawa District on April 1, 1896
- Seta District (勢多郡)
- Tago District (多胡郡) - merged with Minamikanra and Midono Districts to become Tano District on April 1, 1896
- Tone District (利根郡) - absorbed Kitaseta District on April 1, 1896
- Usui District (碓氷郡)
- Yamada District (山田郡)
- Kōzuke no kuni in Iwanami Nihonshi Jiten (岩波日本史辞典), CD-Rom Version. Iwanami Shoten, 1999-2001.
- Nussbaum, Louis-Frédéric and Käthe Roth. (2005). Japan encyclopedia. Cambridge: Harvard University Press. 10-ISBN 0-674-01753-6; 13-ISBN 978-0-674-01753-5; OCLC 58053128
Media related to Kozuke Province at Wikimedia Commons
- Murdoch's map of provinces, 1903
- National Archives of Japan: Tatoroyama no ki, survey of limestone cave in Mount Tatoro in Kozuke Province, 1837 (Tenpo 8).
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