Hae Mo-su was the founder of Buyeo. According to the Samguk sagi, Hae Mo-su was the father of Goguryeo's founder, Ko Chumong also known as Dongmyeong of Goguryeo. According to the Samguk yusa, Hae Mo-su was the son of heaven, riding in a chariot of five dragons, to establish Bukbuyeo.