Owari Domain
The Aomatsuba Incident was the oppression of the Sabaku party ("sabaku ha") that occurred in the Owari Domain from February 13 to 18, 1868. Immediately after returning to the Owari domain from Kyoto, Tokugawa Yoshikatsu (徳川義勝), the 14th lord of the domain, received an imperial order with charges of "adultery" (姦徒誅鋤). The accused subjects ranged from senior vassals to general feudal retainers, with 14 decapitations and 20 other punishments. There are various theories about the background of the imperial decree.