定军山
In 219, during the Battle of Mount Dingjun, Liu Bei's general Huang Zhong defeated and killed Cao Cao's general Xiahou Yuan and an official Zhao Yong (). Zhao Yong held the appointment of Inspector of Yi Province. This "Zhao Yong" is believed to be Zhao Ang because the Chinese characters for "yong" and "ang" had similar meanings, and also because "yong" and "ang" had the same pronunciation in Old Chinese. Moreover, they held the same appointment and lived around the same period of time. Therefore, it is possible that the name "Zhao Ang" was erroneously recorded as "Zhao Yong".