Struggle of Th??X??ng river involving Tây S?n and Qing Military in December, 1788 In 1771, the Tây S?n revolution broke out in Quy Nhon, which was beneath the control of the Nguy?n lord.[111] The leaders of this revolution were being a few brothers named Nguy?n Nh?c, Nguy?n L?? and Nguy?n Hu?? not relevant to the Nguy?n lord's relatives. In 1773,