The civil war in between the Lê-Trịnh and Mạc dynasties ended in 1592, when the military of Trịnh Tùng conquered Hanoi and executed king Mạc Mậu Hợp. Survivors from the Mạc royal household fled for the northern mountains within the province of Cao Bằng and continued to rule there right https://8kbet08753.educationalimpactblog.com/53112093/the-fact-about-8kbet-that-no-one-is-suggesting