•
Introduction: This article profiles Wei Zheng, the most upright minister of Emperor Taizong. A former rival advisor, he dared to speak frankly, urging governance by integrity, opposing extravagance, and warning against complacency. Backed by Empress Zhangsun, he became the emperor’s “mirror.” His death marked the loss of a critical moral guide for the Zhenguan…
•
Brief: This article reviews the start of Emperor Taizong’s Zhenguan Reign. After the Xuanwu Gate Incident, he pardoned rivals and appointed upright officials like Wei Zheng. He prioritized agriculture, eased taxes, and defeated the Eastern Turks. His philosophy of “vigilance in peace” laid the foundation for Tang’s golden age.