Zhou Yu in the context of "Liu Qi (Liu Biao's son)"

Sun Quan (pronunciation; 182 – 21 May 252), courtesy name Zhongmou (仲謀), posthumously known as Emperor Da of Wu, was the founder of Eastern Wu, 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 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.

Sun Quan was born while his father Sun Jian served as the adjutant of Xiapi County. After Sun Jian's death in the early 190s, he and his family lived at various cities on the lower Yangtze, until Sun Ce carved out a warlord regime in the Jiangdong region, based on his own followers and a number of local clan allegiances. When Sun Ce was assassinated by the retainers of Xu Gong in 200, the 18-year-old Sun Quan inherited the lands southeast of the Yangtze River from his brother. His administration proved to be relatively stable in those early years as Sun Jian and Sun Ce's most senior officers, such as Zhou Yu, Zhang Zhao, Zhang Hong, and Cheng Pu supported the succession. Thus throughout the 200s, Sun Quan, under the tutelage of his able advisers, continued to build up his strength along the Yangtze River. In early 208, his forces finally won complete victory over Huang Zu, a military leader under Liu Biao, who dominated the middle Yangtze. Huang Zu was killed in battle.