Cui Yan
In 200 CE, when Yuan Shao was preparing for a campaign against a rival warlord Cao Cao, he set up military garrisons at Liyang () and Yan Ford (). Cui Yan attempted to dissuade him from going to war by saying, "The Emperor is in Xu and the people's hopes are with him. Why don't you faithfully perform your duties by defending the border and maintaining peace within your jurisdiction?" Yuan Shao refused to listen to Cui Yan and insisted on attacking Cao Cao, but ended up being defeated by Cao at the decisive Battle of Guandu later that year. After Yuan Shao died in 202, his sons Yuan Tan and Yuan Shang formed their own military forces and started fighting for control over their father's territories in northern China. Both Yuan Tan and Yuan Shang wanted Cui Yan on their side, but Cui refused to help either of them and claimed that he was ill. As a consequence, he was imprisoned by Yuan Shang, but was later saved by Yin Kui () and Chen Lin.