The was a failed coup d'etat
attempt carried out against the Tokugawa shogunate
in 1651, by a number of ronin
. Though it failed, the event is historically significant as an indication of a wider problem of disgruntled ronin throughout the country at the time. Masterminded by Yui Shōsetsu
and Marubashi Chūya
, the uprising is named after the Keian era
in which it took place.
According to strategist Yui's plan, Marubashi would take Edo Castle
, the headquarters of the shogunate, using barrels of gunpowder to begin a fire which would rage through Edo, the capital. In the confusion, with the authorities distracted by firefighting efforts, the ronin would storm the castle and kill key high officials.
At the same time, Yui would lead a second group and seize the Tokugawa stronghold in Sunpu
(modern-day city of Shizuoka
). Further action was planned for Osaka Castle
. They timed their rebellion to take advantage of the death of Shogun Tokugawa Iemitsu
, as his successor, Ietsuna
, was still a child. The conspirators aimed to force the shogunate to relax its policies of seizing han
and dispossessing daimyo
, which under Iemitsu had deprived tens of thousands of samurai of position and income, adding them to the ranks of ronin.
Ultimately, however, the uprising failed when the conspirators' plan was discovered. Marubashi Chūya fell ill, and, talking through his fever dreams, revealed secrets which made their way to the authorities by the time the rebels were ready to... Read More