Lê Hoàn
Lý Phật Mã was born in 1000 in Hoa Lư, Ninh Bình, during the reign of king Lê Hoàn, when his father Lý Công Uẩn was an official of the royal court. His mother was Lê Thị Phất Ngân, daughter of Lê Hoàn. When he was nine, Lý Công Uẩn became the new ruler of Đại Việt and moved the capital from Hoa Lư to Thăng Long. In 1020, as crown prince, Phật Mã was marching his army south through Thanh Hóa, he encountered the spirit of Mount Trống Đồng, which promised to help his campaign. Phật Mã successfully invaded Champa, killed the Cham commander, and destroyed half his army. After his father's death, Phật Mã claimed that the Spirit of Mount Trống Đồng, or the Mountain of the Bronze Drum (Thần Núi Đồng Cổ), which also inhabited a shrine at Thăng Long.