???????????????????? ????, ??????, ?????????? ??????.The civil war in between the Lê-Tr?nh and M?c dynasties led to 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 relatives fled towards the northern mountains while in the province of Cao B?ng and ongoing to rule there till 1677 when