In 547, Gao Huan died, and Gao Cheng became effective regent of Eastern Wei, dominating the political scene, and he soon considered taking the throne from Emperor Xiaojing of Eastern Wei. However, while preparing, he was assassinated by his slave Lan Jing (蘭京) in 549.
In 547, Gao Huan passed away, and Gao Cheng became a regent for Eastern Wei, influencing politics. He planned to usurp the throne from Emperor Xiaojing of Eastern Wei but was killed by his slave Lan Jing (蘭京) in 549.