Yi In-jwa's Rebellion

1728 Yi In-jwa's Rebellion
Portrait of Oh Myeong-Hang
Date March 15—April 19th, 1728 Location Gyeonggi Province Result Government Victory Rebellion suppressed
Belligerents
Yi In-Jwa's Rebel Army	Joseon Army
Commanders and leaders
Yi In-jwa Jeong Hee-Ryeong	Oh Myeong-Hang Park Moon-su Park Chan-shin Yi Sam
Strength
70,000	2,300
Casualties and losses
Annihilation	Moderate

Yi In-jwa's Rebellion (Korean: 이인좌의 난; Hanja: 李麟佐의亂), also known as the Musin Rebellion (무신란; 戊申亂), after the name of the year in which it occurred in the sexagenary calendar, was an attempted coup d'état in March 1728 by a coalition of the radical faction of the Namin and the excluded Soron faction. After the death of King Gyeongjong and the ascension of King Yeongjo to the throne, the position of the Noron faction was restored, and Soron, who had instigated the rebellion under the pretext of protecting King Gyeongjong, was punished and excluded from power. Shortly after ascending to the throne, Yeongjo pursued a policy of equal recruitment, believing that factional strife was detrimental to the country's development.^[1] In response, the radical faction of the Soron group justified their rebellion by raising suspicions about the circumstances of King Gyeongjong's death and claiming that King Yeongjo was not the legitimate heir of King Sukjong, thereby securing their power. The rebellion began on March 15 when Yi In-jwa captured Cheongju Castle. The rebel forces, marching toward Hanyang (present-day Seoul), were defeated by the royal army, and the support from the Yeong and Honam regions was also suppressed by local forces, leading to the suppression of the rebellion.^[2]