Yi Si-ae's Rebellion

Yi Si-ae's Rebellion

A chulgipajeokdo of Eo Yu-so climbing the coastal cliff and defeated Yi Si-ae’s army.
DateMay—August 1467
Location
Result

Government Victory

  • Rebellion suppressed
Belligerents
Joseon Army Yi Si-ae's Rebel Army
Commanders and leaders
Sejo of Joseon
Prince Gwiseong
Yi Jun
Jo Seok-mun
Heo Jong
Kang Soon
Kim Gyo
Eo Yu-so
Nam I
Yi Si-ae  
Yi Si-hap  
Yi Myeong-Hyo  
Strength

May: 30,000

July: 50,000

May: 30,000

July: 10,000
Casualties and losses
Unknown military casualties. Twenty thousand surrendered and defected to the government army. Destruction of the rebel army and execution of their leaders.
Yi Si-ae's Rebellion
Hangul
이시애의 난
Hanja
李施愛ㅡ亂
Revised RomanizationYi Si-ae-ui-nan
McCune–ReischauerYi Si-ae-ŭi-nan

Yi Si-ae's Rebellion was an armed rebellion in 1467 in Hamgil Province (later renamed Hamgyong Province) led by General Yi Si-ae, a member of Yangban landowners in Kilju, Hamgil Province, to rebel against the centralized policy of King Sejo.