Sieges of Toishi

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Sieges of Toishi
Part of Sengoku period
Date 1550-1
Location Toishi Castle, Shinano Province, Japan
Result Takeda victory
Takeda Shingen takes Toishi
forces of Takeda family forces of Murakami Yoshikiyo
Commanders and leaders
Sanada Yukitaka
Yokota Takatoshi
Murakami Yoshikiyo
4000 3000
Casualties and losses
Unknown 1000+ killed

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 sieging the castle in 1550. The defending lord, Murakami Yoshikiyo, held out until the following year, but his garrison suffered over 1000 casualties, and was ultimately forced to surrender.


  • Turnbull, Stephen (1998). 'The Samurai Sourcebook'. London: Cassell & Co.