Li Xiucheng
The Army Group Jiangnan (江南大營) were Qing soldiers who encircled Nanjing twice, in March 1858 and May 1860. The first siege used 200,000 soldiers, and was led by Li Xiucheng. It was routed in 1860, after occupying Jiangsu Province (except for Shanghai). Tan also fought in the Battle of Shanghai (1861).