The History of the Yuan Dynasty written by Song Lian of the Ming Dynasty: "In the third month of Wushen Spring in the third year, the emperor died in the land of Hengxiang Yi'er. ...It was a severe drought, the rivers dried up, the weeds burned themselves, and 89 out of 10 cows and horses died. , people were in dire straits. The kings and various tribes also sent envoys to the counties south of Yanjing to collect goods, bows, arrows, saddles and bridles, or to collect pearls from the Uighurs in the Western Regions, or to collect eagles and falcons from Haidong Tower. , Day and night are endless, and the people's strength has become more and more difficult. However, since Renyin, the laws and regulations have been inconsistent, and the internal and external are separated, and Taizong's government has declined. "
"Yuan Shu" by Zeng Lian of the Qing Dynasty: "The theory is: In Dingzong's time, there were many things missing, and the previous history says: "In the year when the emperor died, there was a severe drought, the rivers dried up, the weeds burned themselves, eighty-nine out of ten cattle and horses died, and people were destitute. The kings and ministries sent envoys to Yanjing." The tribes in the south solicited goods, bows, arrows, saddles and bridles, or asked for pearls from the Uighurs in the west, and eagles and falcons from the east of the sea. Posts and cavalry came in an endless stream day and night. However, since Renyin, the laws and regulations have been inconsistent, and internal and external separation has become more and more difficult. , and Taizong's government declined. 'His words were based on what Queen Zhaoci said when he came to the throne. Isn't it true that the Han Dynasty is also a filial piety, but there are no good ministers to assist it, and the clan members have succeeded in seizing the emperor Yan Yi Cong? The loss of Liemen was established by Taizong's imperial edict. According to historical records, after the death of Dingzong, Meng Ge's party did not want to be the king, so they fled to the northern border and chased Taizong. The queen killed the empress Dingzong, which is not a rebellion! Naturally, the descendants of Taizong did not want to take Brother Meng as their king, and the Central Plains was in turmoil. "
Tu Ji "Meng" in the Republic of China. "Historical Records of the Wu'er" "Khan was seriously powerful. He had not been in power for a long time and was not equipped with facilities. However, when the barbarians were really able to claim control, the power moved downwards. Khan was pro-government, established strict disciplines, regained his authority as a monarch, and suffered from many illnesses since childhood. Genghis Khan ordered Hu Ruzhak, the ancestor of King Yilu, to serve as his main meal. He was a drunkard in his middle age, and suffered from cramps in his hands and feet. During his reign, he often neglected things because of his illness, and many things were decided by his ministers Zhenhai and Heda. ”
The History of the New Yuan Dynasty written by Ke Shaobin of the Republic of China: “Dingzong punished the Aobu and Lahe barbarians, and used Zhenhai and Yelvzhu to show the rewards and punishments, which were beyond the reach of Taizong. They were all the bad policies of Empress Ma Zhen. He was removed by the emperor. There is no clear record of the incident in the old history. It is said that the career of the predecessors declined due to the emperor, so there is no false accusation.
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