Disaster of Yongjia

BelligerentsHan-Zhao dynastyWestern Jin dynastyCommanders and leadersLiu Cong
Huyan Yan
Wang Mi
Liu YaoEmperor Huai of Jin(POW)Casualties and losses Unknown 30,000+

The Disaster of Yongjia (simplified Chinese: 永嘉之乱; traditional Chinese: 永嘉之亂) occurred in July 311 CE, when forces of the Han-Zhao dynasty captured and sacked Luoyang, the capital of the Western Jin dynasty. The Han's army committed a massacre of the city's inhabitants, killing the Jin crown prince, a host of ministers, and over 30,000 civilians. They also burnt down the palaces and dug up the Jin dynasty's mausoleums. Though the Western Jin would survive for a few more years, this event is often seen as one of the worst disasters in Chinese history, as both the emperor and one of the ancient capitals fell to the hands of "barbarian" forces.