Battle of Th??X??ng river concerning 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 the revolution have been three brothers named Nguy?n Nh?c, Nguy?n L?? and Nguy?n Hu?? not connected with the Nguy?n lord's family members. In 177