《资治通鉴·唐纪·唐纪七十三》
当初郑汉章跟随毕师铎出征广陵，留下他的妻子守卫淮口，吕用之便带领人马攻打淮口，十天时间没有攻克，郑汉章率领军队回来应救。
郑汉章之从师鐸也，留其妻守淮口，用之帅众攻之，旬日不克，汉章引兵救之。
Zheng Hanzhang originally followed Bi Shiduo to Guangling, leaving his wife to guard Huai Kou, Lu Yongzhi led his troops to attack Huai Kou, but failed to conquer it in ten days, Zheng Hanzhang led his army back to help.