Adoption and Accession
Zhao Shen was born in 1127 at Xiuzhou, modern Jiaxing in Zhejiang, with the name Zhao Bocong. His family were distant members of the imperial clan, seventh-generation descendants of Taizu. When Emperor Gaozong's only son died in 1129, officials urged the childless emperor to choose an heir from Taizu's line, and in 1132 the small boy was brought into the palace to be raised there. He was given new names as his standing rose, and became Zhao Shen when he was made crown prince in 1162.
Later that year Gaozong abdicated in his favour. The retired emperor kept considerable influence until his death in 1187, and Xiaozong treated him with marked respect throughout. His temple name, Xiaozong, means "Filial Ancestor".
The Rehabilitation of Yue Fei
One of Xiaozong's first acts was to restore the honour of Yue Fei, the general put to death under Gaozong in 1142. Yue Fei's titles were restored and he was reburied with honour beside the West Lake at Lin'an (modern Hangzhou); in 1179 he was given the posthumous name Wumu. Xiaozong also removed the remaining followers of the late chancellor Qin Hui from court.
War and Peace with the Jin
Xiaozong hoped to recover the northern lands lost to the Jurchen Jin in 1127. In 1163, soon after his accession, he launched a northern expedition. The Song armies won some early successes, but their commanders, Li Xianzhong and Shao Hongyuan, distrusted each other, and the army was routed at Fuli, in northern Anhui. The campaign collapsed.
A new peace followed. Under the agreement concluded in 1165, the Peace of Longxing, the Song emperor was no longer treated as a vassal of the Jin. The two rulers now addressed each other as nephew and uncle, the terms were less humiliating than before, and the annual payments were reduced to 200,000 taels of silver and 200,000 bolts of silk. The peace lasted for the rest of his reign.
Government in the Qiandao and Chunxi Eras
Later Chinese historians looked back on the Qiandao and Chunxi eras as the best-governed years of the Southern Song. Xiaozong worked to strengthen farming and the economy while reforming and training the army, and he is said to have practised archery and riding himself. He took a close personal interest in the government's paper money, the huizi, and is reported to have said that worry over it had cost him nearly ten years of sleep.
His reign was also a great age of letters. The poets Lu You, Yang Wanli, Fan Chengda and Xin Qiji were all active, and the philosopher Zhu Xi was developing the Neo-Confucian teaching that later became the orthodoxy of the examinations.
Abdication
Gaozong's death in 1187 affected Xiaozong deeply. He withdrew from government to mourn and passed much of the daily business of state to his son, Zhao Dun, who had been crown prince since 1171. In 1189 he abdicated in Zhao Dun's favour, and his son took the throne as Emperor Guangzong. Xiaozong then took the title of Taishang Huang, retired emperor, himself.