Question: What is the date of death of Gülşah Hatun's husband?
Sentence (from "Mehmed the Conqueror"): Mehmed II (Modern ; 30 March 1432 – 3 May 1481), commonly known as Mehmed the Conqueror , was an Ottoman Sultan who ruled from August 1444 to September 1446, and then later from February 1451 to May 1481.
Relevant evidence: Yes