Lê Hoàn, Vietnamese emperor (d. 1005)
Lê Hoàn (10 August 941 – 18 March 1005), posthumously title Lê Đại Hành, was a Vietnamese king and the 3rd ruler of Dai Viet kingdom, ruling from 981 to 1005. He first served as the generalissimo commanding a ten-thousand man army of the Dai Viet court under the reign of Đinh Bộ Lĩnh. Following the death of Đinh Bộ Lĩnh in late 979, Lê Hoàn became regent to Đinh Bộ Lĩnh's successor, the six-year-old Đinh Toàn. Lê Hoàn deposed the boy king, married his mother, Queen Duong Van Nga, and in 980 he became the ruler. He commanded the Viet army fended off a northern invasion in 981, then led a seaborne invasion of the southern Champa kingdom in 982.