Lin Zexu, courtesy name Yuanfu, was a Chinese political philosopher and politician. He was a head of state (Viceroy), Governor General, scholar-official, and under the Daoguang Emperor of the Qing dynasty best known for his role in the First Opium War of 1839–42. He was from Fuzhou, Fujian Province. Lin's forceful opposition to the opium trade was a primary catalyst for the First Opium War. He is praised for his constant position on the "moral high ground" in his fight, but he is also blamed for a rigid approach which failed to account for the domestic and international complexities of the problem. The Emperor endorsed the hardline policies and anti-drugs movement advocated by Lin, but placed all responsibility for the resulting disastrous Opium War onto Lin.

The Daoguang Emperor, also known by his temple name Emperor Xuanzong of Qing, personal name Mianning, was the seventh emperor of the Qing dynasty, and the sixth Qing emperor to rule over China proper, reigning from 1820 to 1850. His reign was marked by "external disaster and internal rebellion." These included the First Opium War and the beginning of the Taiping Rebellion which nearly brought down the dynasty. The historian Jonathan Spence characterizes the Daoguang Emperor as a "well meaning but ineffective man" who promoted officials who "presented a purist view even if they had nothing to say about the domestic and foreign problems surrounding the dynasty."