Lạc Việt
Thục Phán (An Dương Vương), the ruler of the neighbouring upland Âu Việt tribes, overthrew the last Hùng king in c. 258 BC. After conquering Văn Lang, Thục Phán united the Lạc Việt tribes with the Âu Việt ones to form a new kingdom of Âu Lạc, building his capital and citadel, Cổ Loa Citadel in Hanoi's Dong Anh district.