Sejo of Joseon

Sejo of Joseon (; September 29 1417 – September 8 1468) was the seventh king of the Joseon Dynasty. He was the second son of Sejong the Great.
In 1429 his peerage was Grand Prince Suyang. When his father died in 1450, his elder brother Munjong was crowned. Two years later Munjong died, and Munjong's son Danjong was crowned.
In 1455, he took the throne and became king of Joseon himself. Sejo's nephew Danjong was expelled. Danjong was then murdered in 1455.