According to the records of the history of Song Dynasty, the legend appeared in Song Taizu's arms with a dream. According to different records in The Water Margin, Song Gaozong was dreamed by Song Taizu and said, "Your ancestors made their own plans. According to my long position, as for the scarcity of the world, it is time to return my position. " ("Since your ancestors used tricks to occupy my throne for a long time and reached a sparse and dilapidated situation in the world, it is time to return the throne to me." ) So, Song Gaozong adopted Mao VIII's grandson as his adopted son and made him a prince; There is a similar record in the history of Song Dynasty, but it was entrusted to Empress Meng.
But despite its demise, the main decision is still in the hands of Song Gaozong. However, after Zhao Tuo acceded to the throne, he immediately rehabilitated Yue Fei and wiped out the remnants of Qin Gui. As the father of the emperor, Emperor Gaozong did not express any opinions, and neither supported nor obstructed it. However, after abdication, the relationship between Gaozong and Xiaozong was not bad.
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Evaluation of Zhao Gou:
Professor Zhu Ruixi, former president of China Song History Society: Song Gaozong insisted on making peace with Jin, paying tribute and killing Yue Fei and his son. He was an out-and-out capitulator leader. But he sometimes commanded and organized Jin troops to resist invasion in Song Jun. In addition, he has been using the titles of Song Dynasty and Zhengshuo, so he has not fully reached the level of "traitor". He can't be called a traitor.
At the same time, in the construction of internal affairs, through continuous efforts, he solved the thorny problems such as peasant riots, mutiny and migration, stabilized the political situation, and thus ensured the continuation of the rule of the Song Dynasty, so he was also the "Lord of Zhongxing" in the Southern Song Dynasty. In a word, the specific environment in which he lived determined that he was an emperor with mixed merits and demerits and could not be completely denied.
Baidu Encyclopedia-Zhao Gou (Song Gaozu)