卫嗣君 / Wey Sijun

卫嗣君 / Wey Sijun appears in 《资治通鉴·周纪》36丨卫嗣君的帝王之术 as the successor after 卫平侯 dies in 周显王’s forty-fourth year, 324 BCE. The episode frames him as a weak-state ruler whose political weight is shrinking while 秦惠文王 claims kingly title.

His main story concerns a 卫国 prisoner who escapes to 魏国 and enters 魏惠王 / 梁惠王’s palace because of medical skill. Wey Sijun first sends envoys with fifty gold and repeats the request five times, then says he is willing to exchange Zuoshi/Left-shi city for the fugitive. Advisers object that a city is too much for one criminal, but Wey Sijun replies that governance has no small matters and disorder has no harmless scale.

The episode reads his choice through 治无小乱无大 rather than simple stubbornness. For Wey Sijun, the fugitive case tests whether a ruler can make law credible across borders; if law can be ignored in a small case, territory alone cannot preserve order. When his words reach Wei Hui Wang, the prisoner is returned without ransom or city transfer.

Connections

• 卫国 - small state he rules.
• 卫平侯 - predecessor in the source.
• 魏惠王 / 梁惠王 and 魏国 - ruler and state controlling the escaped prisoner.
• 治无小乱无大 - governing maxim attached to his prisoner case.
• 弱国名分降格 - status context of his accession.
• 法家君术 - adjacent governance frame for rule, reward, punishment, and ruler control.