Emperor of Đại Nam and Nguyễn Dynasty. Khải Định was the 12th Emperor of the Nguyễn Dynasty and the Emperor of Đại Nam in Vietnam, reigning from 1916 to 1925. His name at birth was Prince Nguyễn Phúc Bửu Đảo. He was the son of Emperor Đồng Khánh, but he did not succeed him immediately. Before Emperor Đồng Khánh's era came the eras of Emperor Thành Thái and Emperor Duy Tân, both of whom were exiled by the French for their resistance to the colonial regime. After this trouble, the French decided to enthrone Bửu Đảo as he was the son of the monarch who was the most submissive Nguyễn collaborator with the colonial regime, standing with the French colonizers and opposing any independence movements, Emperor Đồng Khánh. Nguyễn Phúc Bửu Đảo became the nominal ruler of Annam on 18 May 1916, after the exile of Duy Tân and took the name Khải Định for his reign, meaning "auger of peace and stability." He said he wanted to restore the prestige of the empire, but this was not possible with his close collaboration with the French occupiers. Although not satisfied with his position, Khải Định enacted a policy of close collaboration with the French government and was effectively a puppet political figurehead for the French colonial rulers, following all of their instructions to give "legitimacy" to French policies. Because of this, Khải Định was very unpopular with the Vietnamese people. The nationalist leader Phan Châu Trinh accused him of selling out his country to the French and living in imperial luxury while the people were exploited by France. Nguyễn Ái Quốc wrote a play about Khải Định called "The Bamboo Dragon" that ridiculed him as being all grand appearance and ceremony but a powerless puppet of the French government. Emperor Khải Định's unpopularity reached its peak in 1923 when he authorized the French to raise taxes on the Vietnamese peasants, part of which was to pay for the building of his palatial tomb, and which caused a great deal of hardship. He also signed the orders of arrest against many nationalist leaders, such as Phan Bội Châu, forcing them into exile and having their followers who were captured beheaded. Khải Định suffered poor health like his father and became a drug addict. He died of tuberculosis in the Imperial City of Huế.