Aegean Korea in the early seventeenth century The powerful Khan of the Jurchen tribe of Manchuria, who fights the Ming dinasty to gain control of China, rises to become the first ruler of the Qing dinasty and demands that King In-jo of Joseon bow before him; however, King In-jo refuses, claiming loyalty to the Mings. The Qing dinasty is established. King In-jo and his court take refuge in the mountain castle of Namhan on the 14th of December,1636, as the Qing horde advances on Joseon. They then prepare to defend the country.