Question: What is the date of death of Nadira Banu Begum's husband?
Sentence (from "Nadira Banu Begum"): Nadira Banu Begum (14 March 1618 – 6 June 1659) was a Mughal princess and the wife of Crown prince Dara Shikoh, the eldest son and heir-apparent of the Mughal emperor Shah Jahan.
Relevant evidence: Yes