Vietnam: The main altar in the Hoa Khiem Palace in the grounds of the Tomb of Emperor Tu Duc, Hue. Emperor Tu Duc (22 September 1829 - 17 July 1883) (full name: Nguyen Phuc Hong Nham, also Nguyen Phuc Thi) was the fourth emperor of the Nguyen Dynasty of Vietnam and reigned from 1847-1883. The son of Emperor Thieu Tri, Prince Nguyen Phuc Hong Nham succeeded his father on the throne, with the reigning title of Tu Duc, but family troubles caused his era to have a violent start. Thieu Tri had passed over his more moderate eldest son, Hong Bao, to give the throne to Tu Duc.