sentences:  He was considered capable but frivolous and arrogant, as well as lacking in sexual discretion.In 549, he was assassinated by his servant Lan Jing (蘭京), and his younger brother Gao Yang took over the control over the Eastern Wei regime.Gao Cheng was born in 521, when his father Gao Huan was still a courier of documents between the Northern Wei capital Luoyang and the old capital Pingcheng (平城, in modern Datong, Shanxi).