He was based on a Vietnamese hero named Lê Triện (? - 1427). His real name is Lý Triện. He was one of the first men to join Lê Lợi's Lam Sơn insurgent army. In February 1427, he was killed in action when the Ming general's Phương Chính attacked Từ Liêm while Đỗ Bí was captured. Lê Lợi after became a king, he rewarded his father Lý Ba Lao and his son Lý Lăng for Triển's sacrifice and his services and let them change surname from Lý to Lê.