Battle of Th??X??ng river in between Tây S?n and Qing army in December, 1788 In 1771, the Tây S?n revolution broke out in Quy Nhon, which was underneath the Charge of the Nguy?n lord.[111] The leaders of this revolution had been 3 brothers named Nguy?n Nh?c, Nguy?n L?? and Nguy?n Hu?? no