U of Goryeo

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U of Goryeo
고려 우왕
King of Goryeo
Reign 1374 - 1388
Predecessor Gongmin of Goryeo
Successor Chang of Goryeo
Born 25 July 1365
Died 31 December 1389 (1390-01-01) (aged 24)
Consort Royal Consort Geun-Bi
Issue Chang of Goryeo
House House of Wang
Religion Buddhism
U of Goryeo
Hangul 우왕
Revised Romanization U-wang
McCune–Reischauer U-wang
Childhood name
Hangul 모니노
Revised Romanization Monino
McCune–Reischauer Monino
Monarchs of Korea
  1. Taejo 918–943
  2. Hyejong 943–945
  3. Jeongjong 945–949
  4. Gwangjong 949–975
  5. Gyeongjong 975–981
  6. Seongjong 981–997
  7. Mokjong 997–1009
  8. Hyeonjong 1009–1031
  9. Deokjong 1031–1034
  10. Jeongjong II 1034–1046
  11. Munjong 1046–1083
  12. Sunjong 1083
  13. Seonjong 1083–1094
  14. Heonjong 1094–1095
  15. Sukjong 1095–1105
  16. Yejong 1105–1122
  17. Injong 1122–1146
  18. Uijong 1146–1170
  19. Myeongjong 1170–1197
  20. Sinjong 1197–1204
  21. Huijong 1204–1211
  22. Gangjong 1211–1213
  23. Gojong 1213–1259
  24. Wonjong 1259–1269
  25. Yeongjong1269
  26. Wonjong 1269–1274
  27. Chungnyeol 1274–1308
  28. Chungseon 1308–1313
  29. Chungsuk 1313–1330
  30. Chunghye 1330–1332
  31. Chungmok 1344–1348
  32. Chungjeong 1348–1351
  33. Gongmin 1351–1374
  34. U 1374–1388
  35. Chang 1388–1389
  36. Gongyang 1389–1392

U of Goryeo 우, often written Woo, (25 July 1365 – 31 December 1389) ruled Goryeo (Korea) from 1374 until 1388.

Cultural background[edit]

In the thirteenth century, Mongol forces had invaded China and established the Yuan dynasty in 1271. After a series of Mongol invasions, Goryeo eventually capitulated and entered into a peace treaty with the Yuan dynasty, in which Goryeo was subordinate tributary state to China. The Ming dynasty in China had grown extremely powerful during the 14th century; however, it began to beat back the Yuan forces, so that by the 1350s Goryeo had managed to regain its northern territories and took back the Liaodong region.


According to the records, U was reportedly born to slave girl Han Ban Ya, a maid of the monk Shin Don, and King Gongmin. Because Gongmin initially denied the child as his son and refused to name him, Shin Don took it upon himself and named the boy Monino (meaning "servant of Buddha"). As a result of the King's refusal to recognize the child, intense debate and speculation surrounding the lineage of the boy ensued and Monino was not permitted to enter or live inside the palace.

Soon after the death of Shin Don in 1371, King Gongmin summoned Monino to the palace to formally recognize and proclaim the boy as his son and sole heir to the throne. Gongmin officially pronounced Monino to the Royal Court as Crown Prince and renamed him "U."

Accession to the throne[edit]

In 1374, a military hero and high official named Yi In-Im led a small, yet strong, anti-Ming faction that assassinated King Gongmin.

The anti-Ming group enthroned the eleven-year-old boy, as King Gongmin's successor. Suspicious about Gongmin's sudden and unexplained death, the Chinese doubted the legitimacy of the adolescent King U.

Diplomatic Tensions with China[edit]

Tensions over this crucial foreign policy protocol had not been resolved when, the Ming Dynasty proclaimed its intention to establish a command post headquartered in the Ch'ollyŏng pass at the southern end of the Hamgyŏng Plain in 1388.

Goryeo's senior military commander, General Choi Young, consulted with General Yi Seong-gye, and determined that removal of the anti-Ming faction from power in Kaesŏng was essential to reducing the perceived threat from Ming China. Supported by Seong-gye, Choi removed Yi In-Im and his group accordingly in a coup d'état and took personal control of the government.

Fall and Death[edit]

There was a growing feeling in Kaesŏng that Goryeo needed to take some kind of preemptive action against China, and advisors to King U eventually goaded him into attacking the powerful Ming armies. Against universal opposition, and in violation of the long-standing Goryeo practice of not invading its neighbors, King U went one step further and insisted on attacking China proper.

In 1388, General Yi Seong-gye was ordered to use his armies to push the Ming armies out of the Korean peninsula. Upon reaching the Amrok River and realizing that the strength of the Ming forces surmounted the forces of Goryeo, General Yi made a momentous decision that forever altered the course of Korean history. Knowing of the support he enjoyed both from high-ranking government officials and the populace, Yi Seong-gye decided to return to the capital and take control of Goryeo's government instead of destroying his army by attacking the Chinese.

Returning to Kaesŏng and, after overpowering the royal court's defenders and removing (then killing) General Choi Young, Yi Seong-gye usurped the throne from Goryeo's Dynasty and took control of the government. King U was deposed and replaced with his son, King Chang; together they were assassinated with poison one year later and replaced with Prince Gongyang on the grounds that he was of true royal descent.

King U is the only king in Korea's long history to never receive a posthumous title for his reign.


  1. Royal Consort Geun-Bi of the Goseong Lee clan (근비 이씨)
    1. King Chang of Goryeo (6 September 1381 - 31 December 1389) (고려 창왕)
  2. Royal Consort Yeong-Bi of the Dongju Choi clan (영비 최씨)
  3. Royal Consort Ui-Bi of the Jangyeon No clan (의비 노씨)
  4. Royal Consort Suk-Bi of the Choi clan (숙비 최씨)
  5. Royal Consort An-Bi of the Kang clan (안비 강씨)
  6. Royal Consort Jeong-Bi of the Pyeongsan Shin clan (정비 신씨)
  7. Royal Consort Deok-Bi of the Jo clan (덕비 조씨)
  8. Royal Consort Seon-Bi of the Kaesong Wang clan (선비 왕씨)
  9. Royal Consort Hyeon-Bi of the Juksan Ahn clan (현비 안씨)
  10. Princess Hwasun (화순옹주)
  11. Princess Myeongsun (명순옹주)
  12. Princess Yeongseon (? - 13 May 1420) (영선옹주)

In popular culture[edit]

See also[edit]


U of Goryeo
Born: 25 July 1365 Died: 31 December 1389
Regnal titles
Preceded by
King of Goryeo
Succeeded by