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[Yamagata Prefecture during the Boshin War] Decisions made by the Shonai, Yonezawa, Yamagata, Kaminoyama, Tendo, and Shinjo domains...
During the Boshin War, fighting unfolded in Yamagata Prefecture over the Shonai Domain, which, along with the Aizu Domain, was considered an enemy of the Imperial Court. The Shonai Domain had 170,000 koku of rice yield, and the Yonezawa Domain had 180,000 koku, but the other domains in the prefecture were small, with less than 50,000 koku of rice yield.
Daiwa Consilio