Gao Huan
Gao Huan was the potentate of the eastern half of what was Northern Wei territory. In 534 , following the disintegration of the Northern Wei dynasty, he installed Yuan Shanjian as ruler of Eastern Wei. Yuan Shanjian was a descendant of the Northern Wei. Yuan Shanjian was a puppet ruler, as the real power lay in the hands of Gao Huan. Several military campaigns were launched against the neighboring Western Wei in an attempt to reunify the territory once held by the Northern Wei, however these campaigns were not successful. In 547 Gao Huan died. His sons Gao Cheng and Gao Yang were able to pursue his policy of controlling the emperor, but in 550 Gao Yang deposed Yuan Shanjian and founded his own dynasty, the Northern Qi.