The civil war concerning the Lê-Tr?nh and M?c dynasties led to 1592, when the army of Tr?nh Tùng conquered Hanoi and executed king M?c M?u H?p. Survivors in the M?c royal family members fled into the northern mountains during the province of Cao B?ng and continued to rule there till 1677 when Tr?nh T?c conquered this previous M?c territory. The L