Nguy?n Hoàng (28 August 1525 – 20 July 1613) was the first of the Nguy?n lords who ruled the southern provinces of Vietnam between 1558 and 1613, from a series of cities: Ai Tu (1558–70), Tra Bat (1570–1600), and Dinh Cat (modern-day Hu?) (1600–13).
He was the second son of Nguy?n Kim.
When his father was assassinated by a M?c supporter, his brother-in-law Tr?nh Ki?m took command of the Lê Loyalist army.
Sometime after his older brother (Nguyen Uong) died (believed to have been poisoned), Nguy?n Hoàng requested his brother in law, and was appointed to govern the southern-most province of Vietnam.
This land was formerly Champa territory which had been conquered by Lê Thánh Tông and at the time was under control of M?c force.
Nguy?n Hoàng defeated the enemy commander Duke L?p and took over the province in 1558.
In 1573 he was given the title Grand Master (Thai-pho) by Emperor Le The Ton.
Later he was given the title Duke of Mon (Mon Cong).In 1592, when Tr?nh Tùng laid siege to the Eastern Capital (modern-day Hanoi), Nguy?n Hoàng lend him resources and troops.
The Nguyen army joined the Royal (Tr?nh) army and helped destroy the remainder of the Mac army.
For reasons that are mysterious, when the new Emperor, Lê Kinh Tông, ascended the throne, Nguy?n Hoàng refused to recognize the new sovereign and instead took for himself the new title of Good Prince (Huu Vuong) in 1600.
Perhaps an explanation is found in that his nephew Tr?nh Tùng had been given a similar title just one year earlier: Pacifying Prince (Binh An Vuong).
Nguy?n Hoàng had many children (10 sons) but most of them either lost their lives in the battlefields or stayed in the North.
His 6th son Nguy?n Phúc Nguyên succeeded him upon his death in 1613.
He ruled the south for 55 years.The reason Tr?nh Ki?m appointed Nguy?n Hoàng to the Southern provinces is not clear.
As anecdote goes, Trinh Ki?m, being afraid of losing power to Nguy?n brothers, ordered the assassination of Nguy?n Hoàng's older brother.
As for Hoang, Tr?nh Ki?m wanted to take advantage of M?c's southern garrison troops to eliminate his brother in law.
Nguy?n Hoàng is considered as the founder of the Nguyen Dynasty and Southern Vietnam.
In 2013, his 400th anniversary was celebrated in Hue.