Battle of Th??X??ng river amongst Tây S?n and Qing Military 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 the revolution were a few brothers named Nguy?n Nh?c, Nguy?n L?? and Nguy?n Hu?? not connected to the Nguy?n lord's spouse and children. In 177