Chinese general whose revolt was one of the most serious threats to the authority of the Qing (Manchu) dynasty (Qing dynasty) (1644–1911/12). In return for their services in establishing Manchu power in China, the Geng clan had been given control of a large fiefdom in Fujian (Fukien) province in South China. But in 1674 the Manchu attempted to regain control of the fiefdom. Geng thereupon joined two other Chinese generals in the Revolt of the Three Feudatories. Although he eventually surrendered and was pardoned, when the Manchu again consolidated their power over South China, charges were preferred against him, and he and his family were executed.