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"): Although it was lost during the Fourth Chinese domination in Vietnam, the contents of the "Đại Việt sử ký", including Lê Văn Hưu's comments about various events in the history of Vietnam, were used by other Vietnamese historians as a base for their works, notably the "Đại Việt sử ký toàn thư" by Ngô Sĩ Liên.
Relevant evidence: No