Yeon Namgeon (Paperback)

High Quality Content by WIKIPEDIA articles! Yeon Namgeon was the second son of the Goguryeo military leader and dictator Yeon Gaesomun (Unknown-665), and third Dae Magniji of Goguryeo during the reign of Goguryeo's last ruler, King Bojang. Following the death of his father in 666, Namgeon became embroiled in a power struggle with his elder brother Yeon Namsaeng. Namgeon and his younger brother Namsan staged a coup against their older brother when he was inspecting all of the fortresses of Goguryeo to prepare for war against the Tang. Namgeon and Namsan's coup forced Namsaeng to surrender to the Tang, and ultimately led to the destruction of Goguryeo. Namgeon appointed himself Dae Mangniji and seized control of the government.