King Gwanghae's officials killed his eight-year-old half-brother in exile, and the boy's mother gave her name to the coup that deposed him
King Seonjo's heir was Gwanghaegun, his son by a concubine. In 1606, when Seonjo was 55, Queen Inmok bore him his only legitimate son, Grand Prince Yeongchang. The chief minister Yu Yeong-gyeong tried to have the infant made heir†. Seonjo died in 1608, and Gwanghaegun took the throne. In 1613 officials of the Greater Northerner faction obtained confessions in a treason case naming Yeongchang and his maternal grandfather, Kim Je-nam, as the conspirators' choice. Yeongchang was reduced to commoner status and confined behind a thorn hedge on Ganghwa Island. Petitions to save him kept coming. In 1614, on the orders of Yi I-cheom, the Ganghwa magistrate Jeong Hang killed him. The Annals of Gwanghaegun record that Jeong starved him, and that Jeong heated the floor of his room until he died. Queen Inmok was confined. On 11 April 1623 the Westerners staged a coup that put Gwanghaegun's nephew on the throne as King Injo; it was justified by Queen Inmok, who was freed that night†. Yeongchang's titles were restored and Yi I-cheom was executed. Gwanghaegun was confined on Ganghwa and then on Jeju, where he died in 1641. He never received a temple name, and his grave in Namyangju is not a royal tomb†.
An heir appointed before a legitimate son is born will treat that son as a rival.
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Cite as: celebrity.estate, “King Gwanghae's officials killed his eight-year-old half-brother in exile, and the boy's mother gave her name to the coup that deposed him,” story s722, https://www.celebrity.estate/gwanghae-1608, updated 30 October 2026.

















































































































































