Dongmyeong of Goguryeo

Dongmyeong of Goguryeo (Korean: 동명성왕; Hanja: 東明聖王), personal name Ko Chumong (고주몽; 高朱蒙), was the founding monarch of the kingdom of Goguryeo, and was worshipped as a god-king by the people of Goguryeo and Goryeo. King Dongmyeong was also an important figure for the kingdom of Baekje, as the father of its founding monarch, King Onjo.

Source: Wikipedia — https://en.wikipedia.org/wiki/Dongmyeong_of_Goguryeo