Zhang Zhao (156–236), courtesy name Zibu, was an official of the state of Eastern Wu during the Three Kingdoms period of China. Born in the late Eastern Han dynasty, Zhang Zhao started his career as a scholar in his native Xu Province before the chaos towards the end of the Eastern Han dynasty forced him to flee south to the Jiangdong (or Wu) region for shelter. In Jiangdong, Zhang Zhao became an adviser to the rising warlord Sun Ce. After Sun Ce's death in the year 200, Zhang Zhao played a key supporting role to Sun Ce's younger brother and successor, Sun Quan, as he consolidated power and his control over the Jiangdong territories. In 208, Zhang Zhao strongly urged Sun Quan to surrender to Cao Cao, a rival warlord, because he believed that they stood no chance against an impending invasion by Cao Cao. However, Sun Quan refused to listen to Zhang Zhao and instead heeded the advice of Lu Su and Zhou Yu. Sun Quan's forces ultimately scored a decisive victory over Cao Cao at the Battle of Red Cliffs in the winter of 208. From 200 until his death in 236, Zhang Zhao served under Sun Quan through the collapse of the Eastern Han dynasty and into the Three Kingdoms period after Sun Quan became the founding emperor of the Eastern Wu state. Throughout his career, Zhang Zhao was known for being a stern, uncompromising and intimidating figure who commanded respect from both his colleagues and Sun Quan. Despite Zhang Zhao's seniority and experience, Sun Quan passed him over twice as a candidate for the position of Imperial Chancellor in 222 and 225 as he believed that Zhang Zhao was so headstrong and stubborn that he would not be able to effectively lead the administration. Nevertheless, Sun Quan paid his due respects to Zhang Zhao as a mentor-like figure who saw him through his formative years to his accession to the throne.