The
Battle of Fushun would be the first military conflict between the
Later Jin, predecessor of Qing, and the
Ming dynasty. Li Yongfang only had 1,200 men under his command. The Jin army assailed the city walls with siege ladders and the unprepared garrison gave their lives in a hasty defense. Li and his lieutenant, Zhao Yipeng, decided to surrender on the condition that no one was to be harmed.
Nurhaci agreed to the terms and entered the city. Li along with many other Han Chinese of the Ming defected to the Qing dynasty and
Manchus because the old Ming system and Zhu emperors was corrupt and the new Qing dynasty gave the opportunity to the Han Chinese to continue their culture. Many Chinese saw the opportunity of serving a Manchu ruler without abandoning their Han Chinese cultural and political experience. He along with a number of Han Chinese surrendered or were captured and entered Manchu service in an administration that adapted many Han Chinese methods. Nurhaci's granddaughter by his son
Abatai married Li as a result of his defection to the Qing. The offspring of Li received the "Third Class Viscount" () title. ==Qing dynasty==