Emperor Lý Anh Tông (1136 – 14 August 1175) of Đại Việt (literally Great Viet), was the sixth ruler of the later Lý Dynasty, from 1138 until his death in 1175. Since Lý Anh Tông, given name Lý Thiên Tộ (李天祚), was chosen as the successor of his father Lý Thần Tông at the age of only two, the early period of his reign witnessed the dominant position of Đỗ Anh Vũ in the royal court until his death in 1157, afterwards the Emperor ruled the country with the assistance of a prominent official named Tô Hiến Thành. The reign of Lý Anh Tông was considered the last relatively stable period of the Lý Dynasty before the turbulence during the reign of Lý Cao Tông.