《新唐书·列传·卷一百一十》
刘瞻因劝谏得罪了唐懿宗，被罢相，郑畋起草诏书写了很多好话，韦保衡等人恨他，认为他讨好刘瞻欺骗皇帝，贬他任梧州刺史。
瞻以谏迕懿宗，赐罢，畋草制书多褒言，韦保衡等怨之，以为附下罔上，贬梧州刺史。
As a result of offending Emperor Yizong of Tang by offering advice, Liu Zhan was dismissed from his position as prime minister. Zheng Tian drafted the imperial edicts and wrote many positive comments, and Wei Baoheng and others hated him, believing he had flattered Liu Zhan and deceived the emperor, and he was demoted to the magistrate rank in Wuzhou.