[3] In May 1633, they crossed the Bohai Gulf back to Liaodong and surrendered to Hong Taiji (1592–1643), the Jurchen Khan and future emperor of the Qing dynasty.
[6] In April 1644, bandit leader Li Zicheng captured the Ming imperial capital of Beijing and forced the Chongzhen Emperor (r. 1627–1644) to commit suicide.
In late May 1644, Dorgon and his new ally, Ming general Wu Sangui, defeated Li at the Battle of Shanhai Pass and soon took Beijing from rebels.
Given sole command of a campaign to attack Guangdong, Geng had reached Jiangxi when he heard that he was being accused of protecting a subordinate who had harbored runaway slaves.
[6] He found three hundred slaves in his camp, sent them back to the capital in chains, and, without waiting for a verdict, committed suicide in Ji'an, Jiangxi, on December 30, 1649.