The civil war among the Lê-Trịnh and Mạc dynasties resulted in 1592, when the military of Trịnh Tùng conquered Hanoi and executed king Mạc Mậu Hợp. Survivors of the Mạc royal family fled on the northern mountains during the province of Cao Bằng and ongoing to rule there right until https://vi-t-nam98643.tblogz.com/rumored-buzz-on-6623-45072692