Zu Dashou
In 1636, Hong Taiji declared himself Emperor Taizong of the Qing dynasty. After subjugating Korea and Inner Mongolia, he turned his sights upon Jinzhou once again. The Qing attacked Jinzhou in 1639 and again in 1640. Both times they were defeated by Zu Dashou. In 1641, Taizong sent an army to besiege Jinzhou and Songshan. The commander of Songshan was Hong Chengchou, commander-in-chief of frontier defenses. Songshan was captured on March 18, 1642 along with several brothers of Zu Dashou: Zu Dale, Zu Daming, and Zu Dacheng. Zu Dale was Zu Dashou's younger brother, and, along with Dashou's sons, were sent to speak with Zu Dashou during the siege of Jinzhou to convince him to surrender, which he did on April 8, 1642, after a long siege in which, just as at Dalinghe previously, his troops had resorted to cannibalism. Hong Taiji, now Emperor Taizong, chided Zu for his treachery after his first surrender at Dalinghe. Nevertheless, Zu was forgiven and permitted to serve the Qing alongside the other members of his clan, many of whom had already served with distinction.