INDICATORS ON GK88 YOU SHOULD KNOW

The civil war among the Lê-Trịnh and Mạc dynasties ended in 1592, when the military of Trịnh Tùng conquered Hanoi and executed king Mạc Mậu Hợp. Survivors in the Mạc royal household fled into the northern mountains from the province of Cao Bằng and continued to rule there until 1677 when Trịnh Tạc conquered this previous Mạc