Jeongjong, 3rd monarch of Goryeo

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Jeongjong of Goryeo (923 – 13 April 949) (r. 945–949) was the third monarch of the Goryeo dynasty of Korea. He was the third son of King Taejo, the founder of the kingdom, and was born more than a decade before Goryeo was formally established. His mother was the daughter of a noble from the Chungju region, Yu Geung-dal.

Jeongjong of Goryeo
고려 정종
高麗 定宗
Wang Yo (왕요)
King of Goryeo
Reign15 September 945 – 13 March 949
Coronation15 September 945
PredecessorHyejong of Goryeo
SuccessorGwangjong of Goryeo
BornWang Yo
Died13 April 949(949-04-13) (aged 25–26)
Jeseok-won, Gaegyeong, Kingdom of Goryeo
Alleung tomb
SpouseQueen Mungong
Queen Munseong
IssuePrince Gyeongchunwon
Posthumous name
King Jideok Janggyeong Jeongsuk Yeongin Gyeonggan Jangwon Munmyeong the Great
Temple name
Jeongjong (정종, 定宗)
HouseHouse of Wang
FatherTaejo of Goryeo
MotherQueen Sinmyeongsunseong
Jeongjong, 3rd monarch of Goryeo
Revised RomanizationJeongjong
Birth name
Revised RomanizationWang Yo
McCune–ReischauerWang Yo

Jeongjong rose to the throne after his half-brother King Hyejong died, and set to reducing the power of various royal in-laws, including Wang Gyu and Pak Sul-hui. However, lacking the support of the Gaegyeong elites, he was unable to substantially strengthen the throne.

In 946, he spent 70,000 sacks of grain from the royal storehouses to support Buddhism in the country. In 947, he had the fortress of Pyongyang constructed as the country's Western Capital. He sought to move the capital from Gaegyeong to Pyongyang, but was not successful. Jeongjong became paranoid however that people inside the palace were conspiring to kill him and he then started to go insane. After four years of his reign, he died just after he signed a royal decree to make his brother, the fourth prince Wang So (known as Gwangjong), king instead of his son.


  1. Queen Mungong of the Suncheon Park clan (문공왕후 박씨)
  2. Queen Munseong of the Suncheon Park clan (문성왕후 박씨)
    1. Prince Gyeongchunwon (경춘원군) - killed by his uncle Gwangjong after being suspected of treason
    2. Unknown Princess
  3. Lady Cheongjunamwon of the Cheongju Kim clan (청주남원부인 김씨)

In popular cultureEdit

See alsoEdit


  • 정종 (in Korean). Doosan Encyclopedia.
Jeongjong, 3rd monarch of Goryeo
Born: 923 Died: 13 April 949
Regnal titles
Preceded by
King of Goryeo
Succeeded by