Cao Shuang
In 239, following Cao Rui's death, Cao Fang became the new emperor. However, as Cao Fang was still too young at the time, Cao Shuang and Sima Yi ruled as regents on his behalf. Through some political manoeuvres, Cao Shuang removed Sima Yi from power and became the sole dominant figure in the Wei government, while Sima Yi claimed to be ill and remained at home. During this time, Cao Shuang appointed Deng Yang as the Administrator () of Yingchuan Commandery () and later as a Chief Clerk () under him. As one of Cao Shuang's close aides, Deng Yang was subsequently promoted to Palace Attendant () and Master of Writing ().