Cao Zhang (? -223), born in Peiguoqiao County (Bozhou, Anhui Province), is the second son of Cao Cao and Wu Xuanbian, the brother of Cao Pi and the brother of Cao Zhi, and Cao Wei is the king of the city god. Cao Zhang has extraordinary martial arts. Cao Cao asked the philosophers about their aspirations and said, "Be a good commander-in-chief", so he was praised by Cao Cao. Its beard is yellow, which Cao Cao called "yellow beard". Before the weak crown, I liked to fight tigers, with great arm strength and poor writing. In 2 16, the marquis of Yanling was sealed. In 265438+2008, Cao Zhang was named commander-in-chief of the Northern Army. He conquered Wu Huan with General Xiaoqi and surrendered to Kirby, an adult of Xianbei in Liaodong. Later, Cao Cao died, Xelloss acceded to the throne, and Cao Zhang and the vassals went to the country. 22 1 year, knighted. The next year, he was made king of the city. In 223, he went to Luoyang to appear before the court and fell ill in the mansion. After his death, posthumous title became king, so he was also called Ren Chengwei.