《新唐书·列传·卷一百一十》
郑凝绩调任龙州刺史，郑畋就去世了，享年六十三岁，赠官太尉。
徙龙州，卒，年六十三，赠太尉。
Zheng Ningji was transferred to be Prefect of Longzhou. By this time, Zheng Tian had already passed away at the age of sixty-three. He was posthumously awarded the rank of General of the Armed Forces.