Jeongjong, 10th Monarch of Goryeo

Jeongjong, 10th Monarch of Goryeo
Hangul	정종
Hanja	靖宗
Revised Romanization	Jeongjong
McCune–Reischauer	Chŏngjong
Courtesy name
Hangul	신조
Hanja	申照
Revised Romanization	Sinjo
McCune–Reischauer	Sinjo

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 II of Goryeo (31 August 1018 – 24 June 1046) (r. 1034–1046) was the 10th ruler of the Goryeo dynasty of Korea. He was the second son of Hyeonjong, and the younger brother of Deokjong. At the age of four in 1022, he was made Naesaryeong, a position of high rank, and designated the Prince of Pyongyang.

Jeongjong II was greatly concerned with national defense, and began constructing fortresses along the northern border in the first year of his reign. In 1037, the country suffered an invasion from the northern Khitan tribes. In 1044, the Cheolli Jangseong was completed, an enormous wall across northern Korea. Jeongjong II also concerned himself with the material support of the army, distributing state land to indigent soldiers in 1036.

Just before his death in 1046, Jeongjong II established primogeniture as national law.

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