Trịnh–Nguyễn War
Nguyễn Phúc Nguyên (阮福源; 16 August 1563 – 19 November 1635) was an early Nguyễn lord who ruled the southern Vietnam from the city of Phú Xuân (modern-day Huế) from 1613 to 1635. During his rule, the Nguyễn established a city at modern-day Saigon. Later, his refusal to pay tribute to the court in Hanoi sparked the Trịnh–Nguyễn War.