The Xianfeng Emperor, also known by his temple name Emperor Wenzong of Qing, personal name Yizhu, was the eighth emperor of the Qing dynasty, and the seventh Qing emperor to rule over China proper, reigned from 1850 to 1861. During his reign, the Qing dynasty experienced several wars and rebellions including the Taiping Rebellion, Nian Rebellion, and Second Opium War. He was the last Chinese emperor to exercise sole power.

The Taiping Rebellion, also known as the Taiping Civil War or the Taiping Revolution, was a civil war in China between the Manchu-led Qing dynasty and the Hakka-led Taiping Heavenly Kingdom. The conflict lasted for 14 years, from its outbreak in 1850 until the fall of Nanjing—which they had renamed "Tianjing"—in 1864. However, the last rebel forces were not defeated until August 1871. Estimates of the conflict's death toll range between 20 and 30 million people, representing 5–10% of China's population. While the Qing ultimately defeated the rebellion, the victory came at a great cost to the state's economic and political viability.