Tây Sơn rebellion

The Tây Sơn dynasty  was a ruling dynasty of Vietnam, founded in the wake of a rebellion against both the Nguyễn lords and the Trịnh lords before subsequently establishing themselves as a new dynasty. The Tây Sơn were led by three brothers, referred to by modern Vietnamese historians as the Tây Sơn brothers because of their origin in the district of Tây Sơn.The Tây Sơn dynasty ended the century-long war between the Trịnh and Nguyễn families, fought off an attack by Qing China, and united the country for the first time in 200 years. Under the most prominent of the Tây Sơn brothers, Nguyễn Huệ (regnal title Quang Trung), Vietnam experienced an age of relative peace and prosperity. However, when he died in 1792 he left no successor capable of administrating the country properly, which allowed the exiled Nguyễn lord Nguyễn Ánh to retake the south of Vietnam and eventually pave the way for his own imperial dynasty, the Nguyễn dynasty.