Question: What was the capital of the dynasty for which Đại Việt sử ký was the official historical text?
Sentence (from "Đại Việt sử ký"): Considered the first comprehensive account of the history of Vietnam, the 30-volume book covered the period from Triệu Đà, the first king of the Triệu dynasty, to Lý Chiêu Hoàng which was the empress regnant and the last ruler of the Lý dynasty.
Relevant evidence: Yes