The civil war amongst the Lê-Trịnh and Mạc dynasties resulted in 1592, when the army of Trịnh Tùng conquered Hanoi and executed king Mạc Mậu Hợp. Survivors of the Mạc royal relatives fled for the northern mountains in the province of Cao Bằng and ongoing to rule there until eventually https://hatshepsutz963pwc8.blogspothub.com/profile