Still, the defensive measures he had put in place served the Nguyễn well. Phú Xuân was not taken by the Trịnh until 1774. Further, his defensive success in these first battles is a credit to his ability to attract talented men to his cause and make use of expert military advice, even when it came from another country. See also Lê dynasty List of Vietnamese dynasties Sources Encyclopedia of Asian History, Volume 3 (Nguyễn Lords) 1988. Charles Scribner's Sons, New York. Nguyễn lords 1563 births 1635 deaths