Wu Sangui declares himself Emperor of Zhou. A few months later he dies of apparent natural causes on October 2, his grandson Wu Shifan continues the rebellion.
Spence, Jonathan D. (2002), "The K'ang-hsi Reign", in Peterson, Willard J. (ed.), Cambridge History of China, Vol. 9, Part 1: The Ch'ing Dynasty to 1800, Cambridge: Cambridge University Press, pp. 120–182, ISBN0521243343.