Zhenzong of Song Dynasty has a tombstone.
In order to compile an advanced textbook on Chinese Feng Shui, Pei Weng also made a special trip to the Northern Song Dynasty Emperor Song Zhenzong’s cemetery to investigate Feng Shui
As for Tan Yuan’s alliance, it was Zhao Heng (Song Zhenzong) in 997 AD As the crown prince, he had several personal expeditions to establish the Chanyuan Alliance (i.e. Chanzhou), creating a favorable opportunity for long-term peaceful development for the country. So this is a merit rather than a fault.
Zhenzong reigned for 25 years. During the reign of Zhenzong of the Song Dynasty, he had good governance. The rule of the Northern Song Dynasty became increasingly solid, the national management became increasingly perfect, the social economy prospered, and the Northern Song Dynasty was relatively strong.
As for the cession of the Dingnan Five Continents, this was not mentioned. In Zhao Heng’s life story, he did not do this. His fault was that he believed in Taoism and Buddhism very much. In the first year of Dazhong Xiangfu (1008) He claimed to have received the Book of Heaven, sealed Mount Tai, and worshiped Fenyang. He ordered Ding Wei to build the Yuqing Zhaoying Palace, which was extremely luxurious. It took seven years to complete and had nearly 3,000 houses. If it is already there, it must be destroyed and replaced, and officials dare not calculate the cost." This caused a huge burden on the people. That's all.