Chu Zhuang Ao, "Zuo Zhuang public 14 years" and "Songs of the South Heaven" for blocking Ao, "Historical Records Chu family" as Du Ao, "Historical Records" and another version of "Ao Tu" as a "strong AO "or" Chuang Ao. " Yang Bojun that the "blocking" and "Du" sounds similar to the "strong" and "village" may be the result of copying errors mistaken. Block Ao formerly Bear difficult, prince of Chu culture. Bear difficult reign, continued to Enriching, Central Plains. Chu Zhuang Ao five years (before 672) bears the storm Yusha brother Yun. Ben Wang Yun with the country through hard times with the person to help kill self, for Chucheng Wang.