stylistic:tone, information:highlighting
Nguyễn-Trịnh confrontation

Nguyễn Hoàng and his successors started to engage in rivalry with the Trịnh lords, after refusing to pay tax and tribute to the central government in Hanoi as Nguyễn lords tried to create the autonomous regime. They expanded their territory by making parts of Cambodia as a protectorate, invaded Laos, captured the last vestiges of Champa in 1693 and ruled in an unbroken line until 1776.