Chen Qun

Chen Qun (died 236), courtesy name Changwen, was a minister of the state of Cao Wei during the Three Kingdoms period. Chen Qun initiated the Nine-rank system for civil service nomination in Wei. Following the death of the first Wei ruler Cao Pi, Chen Qun became the Guardian of Wei's military forces. Chen Qun, Sima Yi and Cao Zhen nominated Cao Pi's son, Cao Rui, to become the new emperor.