Sieges of Toishi

The sieges of Toishi castle (砥石崩れ, Toishi kuzure; "Rout of Toishi") took place during Takeda Shingen's campaign to take over Shinano Province. His army, led by Sanada Yukitaka, began besieging the castle in 1550. The defending lord, Murakami Yoshikiyo, held out until the following year, but his garrison suffered over 1,000 casualties, and was ultimately forced to surrender.

Toishi Castle

Sieges of Toishi
Part of Sengoku period
Toishi Castle
Date 1550–1551 Location Toishi Castle, Shinano Province, Japan 36°25′28.124″N 138°17′29.418″E Result Takeda victory Territorial changes Takeda Shingen takes Toishi
Belligerents
Takeda clan	Murakami clan [ja]
Commanders and leaders
Sanada Yukitaka Yokota Takatoshi†	Murakami Yoshikiyo
Strength
4,000	3,000
Casualties and losses
Unknown	1,000+ killed
Location within Nagano Prefecture Show map of Nagano Prefecture Sieges of Toishi (Japan) Show map of Japan