Qianlong, Emperor (of Qing) Qianlong
Qianlong, the sixth emperor of the Manchu-led Qing dynasty and the fourth Qing emperor to receive recognition in official history as ruler of China, had one of the longest reigns in China's dynastic history and the longest tenure of political power. Initially, Qianlong increased China's military power, economic prosperity, social stability, and cultural achievements. During the last decade of his reign, however, excessive military costs, overpopulation, political corruption, and deteriorating relations between China and the West led to China's decline and contributed to the eventual demise of the Qing dynasty.
Berkshire Dictionary of Chinese Biography