Yan Ying Mourning Duke Zhuang's Corpse and Cui Zhu Sparing Him Case

In 548 BC, Cui Zhu, a powerful minister of the State of Qi, assassinated Duke Zhuang after the duke had an affair with Cui Zhu's wife. Upon hearing the news, Yan Ying went to Cui's residence, laid his head on the duke's corpse, and wailed loudly to perform the ritual duty of a subject mourning his ruler. Cui Zhu's attendants urged him to kill Yan Ying, but Cui refused, stating that Yan Ying was held in high esteem by the people and killing him would cost public support. Consequently, Cui Zhu released Yan Ying without any punishment.

Yan Ying was not punished; Cui Zhu ordered his release, granting him de facto immunity.

Whether Yan Ying's act of mourning a ruler slain in a palace coup constituted a punishable offense, and whether Cui Zhu's decision to spare him was motivated by political prudence rather than legal or moral justification.

The event cemented Yan Ying's legacy as a loyal and courageous minister. It highlighted the tension between usurpation and public opinion in the Spring and Autumn period, showing that even a usurper could be constrained by fear of losing legitimacy. The story became a classic example of ritual propriety versus political violence in Chinese history.