The Case of Sun Linfu and Ning Zhi Expelling Duke Xian of Wei

In 559 BC, powerful Wei ministers Sun Linfu and Ning Zhi, angered by Duke Xian’s arrogant and disrespectful conduct—including hunting on Sun’s land—forced the duke to flee to the state of Qi. They installed his younger brother as Duke Shang. Years later, Ning Zhi regretted the expulsion and ordered his son Ning Xi to restore Duke Xian. In 547 BC, Ning Xi killed Duke Shang and brought back Duke Xian. However, Duke Xian regarded Ning Xi as a threat and had him executed. Sun Linfu escaped to Jin. This episode exposed the fragility of Zhou feudal bonds and intensified the cycle of aristocratic vengeance and power struggles.

There was no formal legal trial. The conflict was resolved through armed coup and political assassination. Duke Xian was restored in 547 BC, Ning Xi was executed shortly after, and Sun Linfu died in exile. The Spring and Autumn Annals condemned the ministers for overturning the proper ruler-minister hierarchy.

Whether ministers possessed legitimate authority to expel an anointed ruler; whether Duke Xian's misconduct justified such drastic action; the moral contradiction between Ning Zhi’s repentance and the resulting bloodshed; and the ethical dilemma of Ning Xi’s patricide of a reigning duke to fulfil a promise.

The event became a hallmark of the crumbling Zhou ritual order, illustrating how ministerial power could forcibly override hereditary sovereignty. It was repeatedly cited by Confucian scholars as a cautionary tale of “ministers usurping the ruler’s authority,” accelerating the disintegration of feudal norms and foreshadowing the lawless power politics of the Warring States period.