War of the Eight Princes

The War of the Eight Princes, Rebellion of the Eight Kings, or Rebellion of the Eight Princes (simplified Chinese: 八王之乱; traditional Chinese: 八王之亂; pinyin: bā wáng zhī luàn; Wade–Giles: pa wang chih luan) was a series of coups and civil wars among kings/princes (Chinese: wáng 王) of the Chinese Western Jin dynasty from 291 to 306 AD. The key point of contention in these conflicts was the paramountcy over the empire in light of the developmentally disabled Emperor Hui of Jin. The name of the conflict is derived from the biographies of the eight princes collected in Chapter 59 of the Book of Jin.

The "War of the Eight Princes" is somewhat of a misnomer: rather than one continuous conflict, the War of the Eight Princes saw intervals of peace interposed with short and intense periods of internecine conflict. At no point in the whole conflict were all of the eight princes on one side of the fighting (as opposed to, for example, the Rebellion of the Seven States). The initial conflicts prior to the coalition against Sima Lun in 301 also cannot be considered as wars, but rather a series of political intrigues and coups d'état. The literal Chinese translation, Disorder of the Eight Kings, may be more appropriate in this regard.

While initial conflicts were relatively minor and confined to the imperial capital of Luoyang and its surroundings, the scope of the war expanded with each new prince who entered the struggle. The civil wars opened the empire to rebellions, most notably by tribal subjects that had resettled into the Central Plains.^[1] At its conclusion, the war devastated the Jin heartlands in northern China, and ushered in the Sixteen Kingdoms era in northern China, causing centuries of warfare between the numerous short-lived dynasties in the north and the Eastern Jin dynasty in the south.