The civil war among 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 with the M?c royal spouse and children fled into the northern mountains during the province of Cao B?ng and ongoing to rule there right up until 1677 when Tr?nh T?c conquered this very last M?c t