鄭阮紛爭
[[Nguyễn Uông]], the first son of Nguyễn Kim, was assassinated by Trịnh Kiểm. Nguyễn Kim's second son, [[Nguyễn Hoàng]], relocated to the south, became the Viceroy of [[Thuận Hoá]] province, founded the line of [[Nguyễn lords]], and started a revolt against the reign of the Trịnh lords. As such, Đại Việt was divided for 232 years as the two lords fought each other in what is now known as the [[Trịnh–Nguyễn War|Trịnh–Nguyễn civil War]].