Cui Yan
Cui Yan (165–216), courtesy name Jigui, was a Chinese politician serving under the warlord Cao Cao during the late Eastern Han dynasty of China. In his early life, he served briefly in the local district office before leaving home to study under the tutelage of the Confucian scholar Zheng Xuan. In the late 190s, Cui Yan became a subordinate of the northern warlord Yuan Shao but did not make any significant achievements under the latter, who ignored his suggestions. Following Yuan Shao's death in 202, Cui Yan was imprisoned when he refused to help either of Yuan's sons—Yuan Shang and Yuan Tan—in their struggle over their father's territories. After he was freed, Cui Yan came to serve under Cao Cao, the "de facto" head of the Han central government. Throughout his years of service under Cao Cao, Cui Yan performed his duties faithfully and diligently, maintaining law and order within his bureau and recommending talents to join the civil service. In 216, in an incident widely regarded as a case of grievous injustice, Cui Yan was accused of defaming Cao Cao in a letter and ended up being stripped of his post, thrown into prison and subsequently forced to commit suicide.