949 years ago today, on January 4, 1076 (November 25, 1075 lunar calendar), Zhao Xu, the seventh emperor of the Northern Song Dynasty, was born. Zhao Xu, the seventh emperor of the Northern Song Dynasty (January 4, 1076 - February 23, 1100), the seventh emperor of the Northern Song Dynasty (reigned 1086-1100), was the sixth son of the previous emperor Song Shenzong, formerly known as the servant, and was once named the king of Yan'an. When Shenzong was critically ill, he was made the crown prince. In the eighth year of Yuan Feng, Shenzong died, and Zhao Xu ascended the throne as the emperor. He was renamed "Yuanyou" by Song Zhe Zong. He reigned for 15 years and died at the age of 24. His posthumous name is Xianyuan, following the road of Xiande Dinggong Qin Wenrui Wu Qi Shengzhao Emperor, and he was buried in what is today Yongtai Mausoleum in Gongxian County, Comments: The most famous civil and military ministers of the Zhezong Dynasty were Bao Zheng and Di Qing, which was a good era.