What is Sejong the Great?
{{Infobox royalty | name = Sejong the Great<br>{{nobold|세종대왕}}<br>{{nobold|世宗大王}} | image = King Sejong the Great.jpg | caption = Posthumous portrait, 1973 | succession = King of Joseon | reign = 9 September 1418 – 30 March 1450 | reign-type = Reign | coronation = Geunjeongjeon Hall, Gyeongbok Palace, [[Seoul|Hanseong]] | cor-type = Enthronement | predecessor = [[Taejong of Joseon|Taejong]] | regent = Crown Prince Yi Hyang (1439–1450) | successor = Munjong | birth_date = {{Birth date|1397|05|15|df=yes}} | birth_name = Yi To | birth_place = Junsu-bang, [[Seoul|Hanseong]], Joseon | death_date = {{death date and age|1450|03|30|1397|05|15|df=y}} | death_place = Grand Prince Yeongeung's Mansion,{{efn|At the time, the residence was also called the Eastern Detached Palace (동별궁; 東別宮; ''Dongbyeolgung''); today, it is known as the Andong Detached Palace (안동별궁; 安洞別宮; ''Andongbyeolgung'').}} [[Seoul|Hanseong]], Joseon | burial_place = [[w:Royal Tombs of the Joseon dynasty#Yeongneung (영릉)|Yeongneung Mausoleum]], Yeoju, Gyeonggi Province, [[South Korea]] | spouse = {{Marriage|Queen Soheon|1408|1446|end=d}} | spouse-type = Spouse(s) | issue = {{Plainlist| * Munjong of Joseon * Sejo of Joseon }} | issue-link = #Family | issue-pipe = among others... | full name = Yi To ({{korean|hangul=이도|hanja=李祹|labels=no}}) | era dates = 1450 | posthumous name = * [[Joseon]]: Great King Jangheon with Cultured Sagacity, Martial Wisdom, Excellent Benevolence,and Brilliant Filial Piety ({{korean|hangul=장헌영문예무인성명효대왕|hanja=莊憲英文睿武仁聖明孝大王|labels=no}}){{sfn|세종실록 1권, 총서}} * [[Ming dynasty]]: Jangheon ({{korean|hangul=장헌|hanja=莊憲|labels=no}}) | temple name = Sejong ({{korean|hangul=세종|hanja=世宗|labels=no}}) | house = [[w:Jeonju Yi clan|Jeonju Yi]] | house-type = Clan | father = [[Taejong of Joseon]] | mother = Queen Wongyeong | religion = Korean Confucianism (Neo-Confucianism) → Korean Buddhism | succession1 = [[Crown Prince]] of [[Joseon]] | reign-type