| Crown Prince Hyomyeong 효명세자 | |
| Spouse: | Queen Sinjeong |
| Issue: | Heonjong of Joseon |
| Dynasty: | Yi |
| House: | Jeonju Yi |
| House-Type: | Clan |
| Father: | Sunjo of Joseon |
| Mother: | Queen Sunwon |
| Succession: | Regent of Joseon |
| Reign-Type: | Tenure |
| Reign: | 17 January 1827 – 6 May 1830 |
| Reg-Type: | Monarch |
| Regent: | Sunjo of Joseon |
| Birth Date: | 18 September 1809 |
| Birth Place: | Daejojeon Hall, Changdeokgung, Hanseong, Joseon |
| Succession1: | Crown Prince of Joseon |
| Reign1: | 6 July 1812 – 6 May 1830 |
| Reign-Type1: | Tenure |
| Predecessor1: | Crown Prince Yi Gong |
| Successor1: | Crown Prince Yi Cheok |
| Death Place: | Huijeongdang Hall, Changdeokgung, Hanseong, Joseon |
| Hangul: | 효명세자 |
| Hanja: | 孝明世子 |
| Rr: | Hyomyeong Seja |
| Mr: | Hyomyŏng Seja |
| Hangulborn: | 이영 |
| Hanjaborn: | 李旲 |
| Rrborn: | I Yeong |
| Mrborn: | I Yŏng |
Crown Prince Hyomyeong (18 September 1809 – 25 June 1830), personal name Yi Yeong, and posthumously honored as King Munjo, was a member of the Joseon dynasty.
The prince was the eldest son of King Sunjo, husband of Queen Sinjeong and father of King Heonjong.[1]
In 1817, the prince was admitted to the Sungkyunkwan. In 1819, he was titled Crown Prince of Joseon. A genius in literature and the arts, he created several court dances and used court ritual and the arts to validate and augment the King's control over the government.
Hyomyeong first became active in politics when he was only 17, due to his father being ill.Known to have pursued various political reforms, the prince served as Regent in 1827 until his death 3 years later at age 20.[2]
He did have some enemies amongst his maternal relatives, but avoided nepotism and was a talented writer, composer and choreographer.
The prince was commemorated in an album of six scenes created to celebrate the commencement of his learning at the Songgyungwan, one of a number of documentary paintings (gungjung girokhwa) of the Joseon period.[3]
Among 53 Joseon jeongjaes or court dances which remain, 26 are his works. His "Chunaengjeon" (Dance of the Spring Nightingale) is the best known and most beloved traditional court dance for its gentle and poetic movements. He was one of the most important people in Korean Court ritual history, along with King Sejong.
Crown Prince Hyomyeong has the longest posthumous name for a member of nobility of Korea.
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