Breach of Covenant
The Case of Duke Cheng of Wei's Return and the Covenant with the People
- Jurisdiction: State of Wei (卫国), under the hegemonic jurisdiction of Jin (晋国), Spring and Autumn China (630 BC (Spring and Autumn Period))
- Original Case: 卫侯归国、宁武子与卫人盟誓案
- Key Figures: Duke Cheng of Wei (卫成公), Ning Wuzi (宁武子/Ning Yu), Yuan Xuan (元咺), Duke Wen of Jin (晋文公), Shu Wu (叔武), Prince Xia (公子瑕)
- Case Tags: Treason;Breach of Covenant;Hegemonic Intervention;Usurpation

