First, Mitsusuke TOYAMA was captured on April 26, while a residence of the Kurume domain in Tokyo was confiscated by the government on April 29, and Yorishige ARIMA, governor of domain, was incarcerated.
まず、3月7日（4月26日）に外山光輔が捕縛され、10日に東京の久留米藩藩邸が政府に押収されて藩知事有馬頼咸が幽閉された。