Takeda Katsuyori, the son of clan head Takeda Shingen, led the siege against Kanbara castle in Suruga province, which was held by a garrison of 1000 men under the command of Hōjō Genan's son, Hōjō Ujinobu.
Takeda Katsuyori, the son of Takeda Shingen, directed an assault on Kanbara castle in Suruga province. The castle was held by a garrison of 1000 soldiers commanded by Hōjō Genan's son, Hōjō Ujinobu.