On January 20, 1639, Mustafa I died at (Eski Saray, Constantinople, Ottoman Empire) at the age of 38-39. Mustafa I (/ˈmʊstəfə/; Ottoman Turkish: مصطفى اول; c. 1600, in Constantinople – 20 January 1639, in Constantinople), called Mustafa the Saint (Veli Mustafa) during his second reign, and called Mustafa the Mad (Deli Mustafa) by historians, was …