Tự Đức

Tự Đức (, , , 22 September 1829 – 19 July 1883) (personal name: Nguyễn Phúc Hồng Nhậm, also Nguyễn Phúc Thì) was the fourth emperor of the Nguyễn dynasty of Vietnam, and the country's last pre-colonial monarch. Ruling for about 36 years from 1847 to 1883, this made him the longest reigning Nguyễn emperor. Provided by Wikipedia