Siege of Kōzuki Castle

Siege of Kōzuki Castle
Part of the Sengoku period
Date1578
Location
Kōzuki Castle, Harima Province
Result Mōri victory
Belligerents
forces of Mōri Terumoto
Ukita clan
force loyal to Oda Nobunaga
Amago clan
Commanders and leaders
Kobayakawa Takakage
Kikkawa Motoharu
Ukita Tadaie
Amago Katsuhisa 
Yamanaka Yukimori 

The siege of Kōzuki Castle (上月城の戦い, Kōzuki-jō no Tatakai) occurred in 1578, when the army of Mōri Terumoto attacked and captured the castle of Kōzuki in Harima Province. Kōzuki had been taken by Toyotomi Hideyoshi the previous year and entrusted to Amago Katsuhisa. When it fell to the Mōri, Amago committed hara-kiri. Amago's loyal and heroic general Yamanaka Yukimori was captured and executed.