There are two sources of the Lạc Long Quân – Âu Cơ narrative

Tuệ Trung Thượng Sĩ and Trúc Lâm Buddhism of Trần dynasty (13th-14th century)

Moralizing Monstrosities: Việt Sử tiêu án 越史標案 and Eighteenth-century Tonkinese historiography