Pen name
Gongmin of Goryeo

Hangul
Hanja
Revised Romanization	Gongmin wang
McCune–Reischauer	Kongmin wang
Hangul	also
Hanja	also
Revised Romanization	Ijae also Ikdang
McCune–Reischauer	Ijae also Iktang
Birth name
Hangul	earlier
Hanja	earlier
Revised Romanization	Wang Jeon earlier Wang Gi
McCune–Reischauer	Wang Chŏn earlier Wang Ki
Sino-Korean Mongolian name
Hangul
Hanja
Revised Romanization	Baegancheopmoga
McCune–Reischauer	Paegan Ch'ŏpmoga

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

King Gongmin (23 May 1330 – 27 October 1374) ruled Goryeo Dynasty Korea from 1351 - 1374. He was the second son of King Chungsuk. In addition to his various Korean names, he bore the Mongolian name Bayan Temür (伯顔帖木兒).

Goryeo had been a semi-autonomous vassal state under the overlordship of the Mongol Yuan dynasty since the Mongol invasions of Korea in the 13th century. Starting with King Chungnyeol, prospective rulers of Korea married Mongolian princesses and were customarily sent to the Yuan Court, in effect, as hostages. As per this custom, King Gongmin spent many years in the Yuan court, being sent there in 1341, before ascending the Korean throne. He married a Mongolian princess who became Queen Noguk. The Yuan dynasty began to crumble during the mid-14th century, and was eventually conquered and replaced by the Ming dynasty in 1368.

With the disintegration of Yuan, which had influenced the Korean peninsula since the Mongol invasion of Korea of 1238, Gongmin began efforts to reform Goryeo government. His first act was to remove all pro-Mongol aristocrats and military officers from their positions. These deposed people formed a dissident faction which plotted an unsuccessful coup against the king. High official Jo Il-shin even tried to take over the government, but this rebellion was put down by general Choi Young.

During the Mongol invasions of Korea, between the 1250s and the 1270s, the Mongols had annexed the northern provinces of Korea and incorporated them into their empire as Ssangseong (쌍성총관부, 雙城摠管府) and Dongnyeong Prefectures (동녕부, 東寧府). In 1356, the Goryeo army retook these provinces partly thanks to the defection of Yi Ja-chun, a minor Korean official in the service of the Mongols in Ssangseong, and his son, Yi Seong-gye. In addition, Generals Yi Seong-gye and Ji Yongsu led a campaign into Liaoyang.

...
Wikipedia