Gyeongjong
Twentieth king of Joseon, son of Sukjong and Royal Consort Jang, backed by the Soron; he died after four years and was succeeded by his half-brother Yeongjo
Because he was sickly and had no son, the Noron had his half-brother Prince Yeoning (Yeongjo) named royal heir and even pressed for him to act as regent. The Soron struck back in the Sinim Purges of 1721–1722, in which four Noron ministers and others died. After his death and Yeongjo's accession, hard-line Soron questioned how he had died and rose in Yi In-jwa's Rebellion of 1728.
