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 under the Charge of the Nguy?n lord.[111] The leaders of this revolution were three brothers named Nguy?n Nh?c, Nguy?n L?? and Nguy?n Hu?? not associated with the Nguy?n lord's family members. In 1773,