Huang Gai, courtesy name Gongfu, was a military general who served under the warlord Sun Quan during the late Eastern Han dynasty of China. He previously served under Sun Quan's predecessors – Sun Jian and Sun Ce.

Sun Quan, courtesy name Zhongmou (仲謀), posthumously known as Emperor Da of Wu, was the founder of the Eastern Wu dynasty, one of the Three Kingdoms of China. He inherited control of the warlord regime established by his elder brother, Sun Ce, in 200. He declared formal independence and ruled from November 222 to May 229 as the King of Wu and from May 229 to May 252 as the Emperor of Wu. Unlike his rivals Cao Cao and Liu Bei, Sun Quan was much younger than they were and governed his state mostly separate of politics and ideology. He is sometimes portrayed as neutral considering he adopted a flexible foreign policy between his two rivals with the goal of pursuing the greatest interests for the country.