Question: Who is Nguyễn Thị Anh's husband?
Sentence (from "Nguyễn Thị Anh"): She was official regent of Annam about 1442 - 1453 during her son's minority, and effective head of state from 1451 until she allowed a servant to kill her in 1459 to avoid being captured or killed in a coup.
Relevant evidence: No