Gwanggaetodaewang

Goguryeo was one of the Three Kingdoms, along with Baekje and Silla, and played an important role in shaping the history and culture of the Korean Peninsula. King Gwanggaeto ruled Goguryeo from 391 to 413 and is considered one of the most successful and influential kings in Korean history. He ascended the throne after the death of his father, King Gogukwon, and expanded Goguryeo's territory as much as possible.