世宗大王 [ㄕˋ ㄗㄨㄥ ㄉㄚˋ ㄨㄤˊ; shi4 zong1 da4 wang2] Sejong the Great or Sejong Daewang (1397-1450), reigned 1418-1450 as fourth king of Joseon or Chosun dynasty, in whose reign the hangeul alphabet was invented ◄ ►