张献忠
The rebellions led by Li Zicheng, Zhang Xianzhong, and the subsequent expansion by the Qing was one of the most devastating wars in Chinese history. Examples of the devastation include the Yangzhou massacre, in which some 800,000 people, (although this number is now considered an exaggeration) including women and children, were massacred. The Qing carried out massacres in cities which resisted like Yangzhou and Guangzhou but did not carry out violence in cities which surrendered and capitulated to Qing rule like Beijing and Nanjing. Nanjing surrendered to the Qing without a violence as all officials surrendered and defected. Whole provinces, such as Sichuan, were thoroughly devastated and depopulated by the rebel Zhang Xianzhong. Zhang Xianzhong killed 600,000 to 6 million civilians. A massive famine in Shaanxi had spurred Zhang Xianzhong and Li Zicheng to revolt and brutality by the rebels was widespread across northern China. Coastal China was devastated by the Qing coastal evacuation order. An estimated 25 million people died in the entire war. Some scholars estimate that the Chinese economy did not regain the level reached in the late Ming until 1750, a century after the foundation of the Qing dynasty. According to economic historian Robert Allen, family income in the Yangtze delta, China's richest province, was actually below Ming levels in 1820 (but equal to that of contemporary Britain).