Sejong The Great

Sejong the Great (May 15, 1397 – April 8, 1450, r. 1418–1450) was the fourth king of the Joseon Dynasty of Korea. During his reign, he reinforced Korean Confucian policies and executed major legal amendments (공법; 貢法). He also oversaw the creation of Hangul and used the advancement of technology to expand Korean territory. He was the third son of King Taejong and Queen Consort Wonkyeong.

Sejong is one of only two Korean rulers posthumously honored with the appellation "the Great", the other being Gwanggaeto the Great of Goguryeo.

Read more about Sejong The Great:  Third Son, Literature, Hangul, Death and Legacy, Family, His Full Posthumous Name, Depiction in Arts and Media, Portrait in Korean Currency Notes