The Kasuke Ikki, or Kasuke Uprising, was a revolt led by farmers in Matsumoto-han against an increase of taxes. Matsumoto-han was already charging its farmers a higher tax than its neighboring domains. In 1686, during the early part of the Edo Period, the tax in Matsumoto was raised to 3 to 5 shou (around 63 liters) from 3 shou (around 54 liters) due to financial difficulties, versus the standard 2 to 5 shou (around 45 liters) in surrounding areas.
This meant that farmers in Matsumoto were paying almost half again what farmers in other areas were paying, a considerable difference. The harvest had been poor that year, and the farmers rose in revolt. Tada Kasuke, the headman of Nakagaya village in Matsumoto-han, submitted a petition to have the tax lowered to 2 to 5 shou, and around 10,000 peasants marched on Matsumoto Castle on Oct. 14, 1686 in support of the petition.
The daimyo of Matsumoto, Mizuno Tadanao, who was at his Edo residence at the time, promised that he would lower taxes to placate the farmers. However, he later went back on his promise and on Nov. 22, 1686 executed 28 farmers as the ringleaders of the uprising, including Kasuke, his 12- and 10-year-old sons, and his younger brother.