It was the incident in which Teisuke WATANABE, a former feudal retainer of Aizu Domain, and others, being dissatisfied with the Meiji government, rallied peasants who were suffering from the burdens of excavation work of Ookozu-Bunsui Canal, and attempted to attack Niigata Prefectural Office.
明治新政府に不満を持つ旧会津藩藩士渡辺悌輔らが、大河津分水掘削工事の負担に苦しむ農民等を糾合し、新潟県庁の襲撃を図った事件。