Struggle of Th??X??ng river concerning 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 the revolution ended up 3 brothers named Nguy?n Nh?c, Nguy?n L?? and Nguy?n Hu?? not linked to the Nguy?n lord's household. In 1773, Tây S?n