Sejong the Great
| Yi Do | |||||||||
|---|---|---|---|---|---|---|---|---|---|
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| King of Joseon | |||||||||
| Reign | 1418–1450 | ||||||||
| Coronation | September 18, 1418 (aged 21) | ||||||||
| Predecessor | Taejong of Joseon | ||||||||
| Successor | Munjong of Joseon | ||||||||
| Regent |
Taejong of Joseon as Former King (1418–1422) Munjong of Joseon as Crown Prince (1442–1450) |
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| Born |
May 15, 1397 Hanseong, Kingdom of Joseon |
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| Died | April 8, 1450 (aged 52) Hanseong, Joseon |
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| Consort | Queen Soheon | ||||||||
| Issue |
Munjong of Joseon Sejo of Joseon |
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| House | Jeonju Yi | ||||||||
| Father | Taejong of Joseon | ||||||||
| Mother | Queen Wongyeong | ||||||||
| Religion | Confucianism; later, Buddhism | ||||||||
| Posthumous name | |
|---|---|
| King Sejong Jangheon Yeongmun Yemu Inseong Myeonghyo the Great 세종장헌영문예무인성명효대왕 世宗莊憲英文睿武仁聖明孝大王 |
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| Temple name | |
| Sejong |
| Korean name | |
.svg)
"Sejong" in Chinese characters
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| Hangul | |
|---|---|
| Hanja | |
| Revised Romanization | Sejong Daewang |
| McCune–Reischauer | Sejong Taewang |
| Birth name | |
| Hangul | |
| Hanja | |
| Revised Romanization | I Do |
| McCune–Reischauer | Lee To |
| Childhood name | |
| Hangul | |
| Hanja | |
| Revised Romanization | Won Jeong |
| McCune–Reischauer | Wŏn Chŏng |
Sejong the Great (Korean pronunciation: [sʰe(ː)dʑoŋ]; 15 May 1397 - 8 April 1450) was the fourth king of Joseon-dynasty Korea. Born with family name Yi (pronounced [i(ː)]; Hangul: 이; Hanja: 李), given name Do (도; 祹), family origin Jeonju ([tɕʌndʑu]; 전주; 全州), sobriquet Wonjeong (원정; 元正). He was the third son of King Taejong and Queen consort Min. He was designated as heir-apparent, Crown Prince, after his older brother Jae was stripped of his title. He ascended to the throne in 1418. During the first four years of his reign, Taejong governed as regent, after which his father-in-law, Sim On, and his close associates were executed.
Sejong reinforced Confucian policies and executed major "legal amendments" (공법; 貢法). He also created the Korean alphabet Hangul, encouraged advancements of scientific technology, and instituted many other efforts to stabilize and improve prosperity. He dispatched military campaigns to the north and instituted the Samin Policy (사민정책; 徙民政策) to attract new settlers to the region. To the south, he subjugated Japanese raiders and captured Tsushima Island.
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