Lý Nhân Tông
Lý Nhân Tông (22 February 1066 – 15 January 1128), personal name Lý Càn Đức, temple name Nhân Tông was the fourth monarch of the Lý dynasty, ruled the kingdom of Đại Việt from 1072 until his death in 1128. Succeeding his father Lý Thánh Tông at the age of 7, during his early reign Lý Nhân Tông ruled with the assistance of his mother Ỷ Lan and the chancellor Lý Đạo Thành who were both considered competent regents and were able to help the emperor maintain the country's prosperity. Appreciated as a great emperor of the Lý Dynasty, Lý Nhân Tông made important contributions to the development of Đại Việt, especially for establishing Confucianism as the official philosophy of the state, creating Confucian-based imperial exams, and creating schools based on the Confucian system of learning. During his 55-year reign, which was the longest reign for any Vietnamese monarch, Lý Nhân Tông also experienced several wars against Đại Việt's neighbours, the Song Dynasty and the kingdom of Champa in which the Sino–Vietnamese War (1075–1076) was the fiercest. After his death, the royal family lost their control over the court to the chancellors and the bureaucracies.