The civil war in between the Lê-Tr?nh and M?c dynasties resulted in 1592, when the military of Tr?nh Tùng conquered Hanoi and executed king M?c M?u H?p. Survivors of the M?c royal spouse and children fled into the northern mountains from the province of Cao B?ng and continued to rule there till 1677 when Tr?nh T?c conquered this last M?c territor