Zhao Zhen, whose first name is Yiyi, is the sixth son of Zhenzong. His biological mother is Li Shi, a palace official. He was raised by Liuhuangzhou since he was a child. He has not known who his biological mother is for a long time. He ascended the throne at the age of thirteen in 1022, and Empress Dowager Liu listened behind the curtain for eleven years. It was not until the death of the Empress Dowager in 1033 that she took charge of the throne. Only then did she learn that his biological mother, Concubine Li Chen, had died the previous year. The folk story of "a civet cat exchanged for a Crown Prince" is based on this incident and is not a historical fact.
After taking office, Western Xia Yuan Hao proclaimed himself emperor. The Song army failed one after another at Sanchuankou, Haoshuichuan, and Dingchuanzhai. In 1044, the Qingli peace treaty was obtained in exchange for the annual gift. Liao Dynasty took the opportunity to seize the land again, and the Song Dynasty settled the matter by increasing the annual currency. Under internal and external difficulties, he appointed Fan Zhongyan, Fu Bi, and Han Qi to implement the Qingli New Deal. However, the New Deal touched the interests of the bureaucracy and failed after more than a year. After that, he appointed Han Qi, Fu Bi, Wen Yanbo and others to govern with generosity.
There were many famous ministers in the Renzong Dynasty, including Ouyang Xiu, Bao Zheng, Di Qing, Sima Guang, Wang Anshi, etc., and the first-ranked Jinshi in 1057 was even more talented. Jiaozi was changed to be issued by the government, movable type printing was invented, poetry and prose innovation emerged, and the economy and culture were highly prosperous. However, the problems of redundant officials, redundant soldiers, and redundant expenses became increasingly serious. All his sons died young, and in his later years he made his cousin's son Zhao Shu his heir. He died of illness in 1063 at the age of fifty-four.
Renzong was known for his generosity and tolerance for criticism. During his reign, the political situation was relatively stable, famous officials emerged in large numbers, and great progress was made in imperial examinations, schools, printing, and currency. The culture of the Song Dynasty reached its peak here. However, he had a soft character and used annual coins to seek peace externally. Internal reforms were abandoned halfway, redundant officials, redundant soldiers, and redundant expenses were increasing day by day. His finances were unable to make ends meet. The trend of poverty and weakness was very obvious in his later years.