Lý Thánh Tông
Đại Việt (, ; literally Great Viet), often known as Annam, was a Vietnamese kingdom in eastern Mainland Southeast Asia from the 10th century AD to the early 19th century, centred around the region of present-day Hanoi. Its early name, Đại Cồ Việt (Han tu: 大瞿越), was established in 968 by Vietnamese ruler Đinh Bộ Lĩnh after he ended the Anarchy of the 12 Warlords, until the beginning of the reign of Lý Thánh Tông (r. 1054–1072), the third emperor of the Lý dynasty. Đại Việt lasted until the reign of Gia Long (r. 1802–1820), the first emperor of the Nguyễn dynasty, when the name was changed to Việt Nam.