Birth name
Jeongjong, 3rd Monarch of Goryeo
Hangul	정종
Hanja	定宗
Revised Romanization	Jeongjong
McCune–Reischauer	Chŏngjong
Hangul	왕요
Hanja	王堯
Revised Romanization	Wang Yo
McCune–Reischauer	Wang Yo

Monarchs of Korea Goryeo
Taejo 918–943 Hyejong 943–945 Jeongjong 945–949 Gwangjong 949–975 Gyeongjong 975–981 Seongjong 981–997 Mokjong 997–1009 Hyeonjong 1009–1031 Deokjong 1031–1034 Jeongjong II 1034–1046 Munjong 1046–1083 Sunjong 1083 Seonjong 1083–1094 Heonjong 1094–1095 Sukjong 1095–1105 Yejong 1105–1122 Injong 1122–1146 Uijong 1146–1170 Myeongjong 1170–1197 Sinjong 1197–1204 Huijong 1204–1211 Gangjong 1211–1213 Gojong 1213–1259 Wonjong 1259–1269 Yeongjong1269 Wonjong 1269–1274 Chungnyeol 1274–1308 Chungseon 1308–1313 Chungsuk 1313–1330 1332–1339 Chunghye 1330–1332 1339–1344 Chungmok 1344–1348 Chungjeong 1348–1351 Gongmin 1351–1374 U 1374–1388 Chang 1388–1389 Gongyang 1389–1392

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 rose to the throne after his half-brother King Hyejong, 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 there, but was not successful.

In television, Jeongjong of Goryeo was portrayed by the following actors:

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