Minh Mạng begins his rule in Vietnam

Background. Minh Mạng was the second emperor of the Nguyễn dynasty, the last Vietnamese dynasty ruling independently from 1802. He was the fourth son of Emperor Gia Long, who died in 1819. The succession passed to Minh Mạng because the eldest son, Nguyễn Phúc Cảnh, had died in 1801. Educated in Confucian principles, he became emperor in 1820, inheriting a realm that had expanded through centuries of conflict.

Accession. Minh Mạng began his rule on 14 February 1820, coinciding with his birthday. His father, Gia Long, died in 1819, leading to Minh Mạng's succession. The transition occurred amidst a deadly cholera outbreak that killed approximately 200,000 people. This health crisis marked the early years of his government, which faced challenges from powerful lieutenants like Lê Văn Duyệt, who had been granted significant autonomy by Gia Long.

Early Challenges. The new emperor faced immediate internal and external pressures. A serious challenge came from Lê Văn Duyệt, a national hero and former regent in the south with freedom to deal with foreign powers. Internationally, Minh Mạng adopted a rigid Confucian orthodoxy and isolationism. He rejected special trade deals, turning away a French agreement in 1821, and viewed Britain as a rising threat following the seizure of Singapore.