Question: What is the date of death of Devletşah Hatun's husband?
Sentence (from "Devletşah Hatun"): Devletşah Hatun (fully "Devletlu İsmetlu Devlet-Şâh Khānūm / Khātûn Hazretleri", , 1365 – 1414), simply known as Devlet-Şâh, was the third wife of Ottoman Sultan Bayezid I and the mother of İsa Çelebi, Mustafa Çelebi the Düzmece, and Musa the Elderly Khan of the Ottoman Empire.
Relevant evidence: Yes