Gung Ye
Later Goguryeo was founded by the Buddhist monk Gung Ye in 901, and its original capital was established in Songak (modern Kaesong). The kingdom was based in the northern regions, which were the strongholds of Goguryeo refugees. Later Goguryeo's name was changed to Majin in 904, and Taebong in 911. In 918, Wang Geon, a prominent general of Goguryeo descent, deposed the increasingly despotic and paranoid Gung Ye, and established Goryeo. By 936, Goryeo conquered its rivals and achieved the unification of the Later Three Kingdoms.