Yi Ja-gyeom

Timeline

1. 1121–1122Kaesong · KaesongIn King Yejong's late years Yi Ja-gyeom already held sway over the court, with two daughters successively as consorts. In 1122 Yejong died; Yi Ja-gyeom enthroned his grandson Wang Gye as Injong and drove out rivals including Grand Duke Wang Bu and Han An-in, all state power falling to the Incheon Yi clan.
2. 1122–1125Kaesong · KaesongAfter Injong's accession Yi Ja-gyeom as Acting Grand Preceptor and Acting Director of the Chancellery monopolized state affairs, his two daughters remarrying Injong as consorts. His power was so great all eyes were on him. As Injong grew, inner court officials Kim Chan and An Bu-rin plotted to remove him; Yi Ja-gyeom relied on his son-in-law, the military officer Tak Jun-gyeong, as backing.
3. 1126Kaesong, Yeonggwang in Jeolla Province · Jeolla ProvinceIn February 1126 the plot to remove Yi leaked; Yi Ja-gyeom ordered Tak Jun-gyeong to lead troops into the palace and set fires, imprisoning Injong, monopolizing state affairs, even plotting usurpation. Injong drove a wedge between them; in May Tak Jun-gyeong turned against him, Yi Ja-gyeom surrendered and was exiled to Yeonggwang in Jeolla Province, dying that December. The Yi Tak Rebellion ended the Incheon Yi clan's zenith, and military power rose thereafter.