Cao Bao (died 196) was a military officer serving under Tao Qian, the Governor of Xu Province, during the late Eastern Han dynasty of China. He became a subordinate of Tao Qian's successor, Liu Bei, after Tao's death in 194. He was killed by Zhang Fei in 196 after a quarrel.[3]
^At this point, Xiapi was also a state (国, "guo") without a Prince. The previous Prince of Xiapi was Liu Ying, who had the posthumous name of Prince Ai (下邳哀王刘宜). He died a few months after succeeding his father Liu Yi (posthumously known as Prince Min; 下邳愍王刘意) as Prince. Liu Yi himself was forced to flee from Xiapi during the Yellow Turban Rebellion. After the rebellion was quelled, his fiefdom was restored; Liu Yi died a few months after this restoration. The state was only abolished in 206 (11th year of the Jian'an era).