The Royal Gate; or Ngo Mon; is one of the main gates to the Forbidden City in Hue. Between 1802 and 1945; Hue was the imperial capital of the feudal Nguyen Dynasty; which dominated much of southern Vietnam. In 1802; Nguyen Phuc Anh (later Emperor Gia Long) succeeded in establishing his control over the whole of Vietnam; thereby making Hue the national capital. The French administration placed the boy emperor Duy Tan on the throne in 1907; replacing his father Emperor Thanh Thai who was opposed to French colonial rule and sent into exile. Hue remained the Vietnamese capital until 1945; when Emperor Bao Dai abdicated and a communist government was established in Hanoi.