Zhao Xu (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, who was once named the king of Yan'an. When Shenzong was critically ill, he was made the crown prince. Yuan Feng was eight years old, and Shenzong died. Zhao Xu ascended the throne as emperor, and was renamed "Yuanyou" for Song Zhe Zong. He reigned for 15 years and died at the age of 24. His posthumous name is Xianyuan, following the road of Xiandao, showing virtue and dinggong, Qin Wenrui and Wu Qi Shengxiao Emperor, and he was buried in today's Yongtai Mausoleum in Gongxian County, Henan Province.

Comments: The most famous civil and military ministers in the Zhezong Dynasty were Bao Zheng and Di Qing. We know that it was a good era.