The most tragic royal family in history did not necessarily refer to the princes of the middle and late Tang Dynasty. In Chinese history, the imperial relatives usually referred to the emperor and his relatives, spouse, brothers, children, etc. They enjoyed high political and economic interests but often faced various unfortunate fates. In the middle and late Tang Dynasty, due to political corruption, economic collapse, natural disasters and other reasons, many princes fell into trouble and lost their power and wealth, which became a tragic ending. For example, during the An Lushan Rebellion in the late Tang Dynasty and the Five Dynasties and Ten Kingdoms period, many princes lost their lives in the war, or were imprisoned, tortured, or even killed. Although some imperial relatives had experienced unfortunate fates, there were also many imperial relatives who had made brilliant achievements and made important contributions to Chinese history. Therefore, the most tragic royal family in history could not be simply limited to a certain period or family.