Legitimacy and Moral Order in Nguyen Political Thought: A Philosophical Interpretation of Confucian Governance in 19th-Century Vietnam

This article examines the philosophical foundations of political legitimacy in the Confucian political thought of the Nguyen dynasty in nineteenth-century Vietnam. It focuses on three core concepts of Confucian statecraft – rectification of names (chính danh), rule by virtue (đức trị), and ritual governance (lễ trị) – to explore how Nguyen rulers understood political authority as a moral responsibility grounded in ethical cultivation and cosmological order. The study adopts a hermeneutic and comparative approach. It analyzes a corpus of Vietnamese imperial sources, including the Đại Nam Thực Lục, the Châu Bản Triều Nguyễn, and Emperor Tự Đức’s reflective text Khiêm Cung Ký. These materials are interpreted within the wider context of East Asian Confucian political philosophy, allowing the Vietnamese case to be considered alongside intellectual developments in late imperial China and Tokugawa Japan. The article argues that Nguyen political thought articulated sovereignty through a synthesis of virtue, ritual order, and cosmic harmony. Legitimate rule depended on the moral self-cultivation of the ruler and on ritual practices that maintained the correspondence between political authority and the moral structure of the cosmos. At the same time, the 19th century confronted this Confucian vision of governance with the political and intellectual challenges of colonial modernity. Rather than abandoning its ethical foundations, the Nguyen court reaffirmed Confucian principles as the basis of legitimate authority. By reconstructing this moral framework, the study highlights the distinctive character of Vietnamese Confucian political philosophy and contributes to comparative discussions of legitimacy and moral governance in East Asian intellectual history.