Question: What is the date of birth of Thuận Thiên (Nguyễn Dynasty Empress)'s husband?
Sentence (from "Gia Long"): Gia Long (8 February 1762 – 3 February 1820), born Nguyễn Phúc Ánh or Nguyễn Ánh, was the first Emperor of the Nguyễn dynasty of Vietnam.
Relevant evidence: Yes