Koxinga ordered his heir and his own wife killed over a child born to a wet nurse, and died before his generals obeyed

Koxinga, a Ming loyalist commander, took Taiwan from the Dutch in 1662. His eldest son, Zheng Jing, held Xiamen. Lian Heng's General History of Taiwan (1920) says Zheng Jing, 19, had a son with his younger brother's wet nurse. Koxinga ordered his elder kinsman Zheng Tai to kill Zheng Jing and Koxinga's own wife, Lady Dong, for raising the boy badly. The generals reasoned that a son could not refuse a father and an officer could not refuse a ruler, but an elder brother could refuse a younger one. Zheng Tai killed only the nurse and the baby. Koxinga sent his sword with a second order, and the generals seized the envoy. On the eighth day of the fifth month he died at 39. The Taiwan garrison made his brother Zheng Xi regent. Zheng Jing landed with troops; the defenders changed sides when he took off his helmet, and he took the throne. In 1663 he had Zheng Tai strangled at a banquet. Zheng Jing died in 1681. His brothers said his heir, Zheng Kezang, "is not our blood". Kezang was seized and strangled at night, and his wife died with him. His half-brother Zheng Keshuang, 12, was installed and surrendered Taiwan to the Qing in 1683. The Qing made Keshuang a duke in the Plain Red Banner. His descendants lived in Beijing until 1911 and then returned to Anhai and Nan'an in Fujian^†.