 The Song dynasty withdrew their troops and Lê Hoàn was referred to in his realm as Emperor Đại Hành (Đại Hành Hoàng Đế).Emperor Lê Đại Hành was also the first Vietnamese monarch who began the southward expansion process against the kingdom of Champa.Emperor Lê Đại Hành's death in 1005 resulted in infighting for the throne amongst his sons.