Việt Trì
The Ất line (; Hán tự: 支乙; "chi" can also be translated to as "branch") was the tenth dynasty of Hùng kings of the Hồng Bàng period of Văn Lang (now Viet Nam). Starting approximately 1251 B.C., the line refers to the rule of Hùng Hải Lang and his successors, when the seat of government was centered at Việt Trì.