Yejong of Joseon, Yi Hwang

Timeline

1. 1461–1468Hanseong · Joseon dynastyFormally designated crown prince in 1462, he received training in classics, history, and state affairs at Changgyeong Palace. In the 1460s he attended some court assemblies as heir; frail and often ill, he was nonetheless Sejo's favored successor, gradually familiarizing himself with the workings of rule at court.
2. 1468–1469Hanseong · Joseon dynastySucceeded as Yejong after Sejo's death in September 1468, honoring his stepmother as Grand Queen Dowager. During his reign he continued Sejo-era policies, but his frail constitution meant real power in affairs of state largely rested with senior ministers. He died at the end of 1469 without an heir, and the throne passed to his half-brother Yi Hyeong.