Mehmed II, commonly known as Mehmed the Conqueror, was the sultan of the Ottoman Empire twice, from August 1444 to September 1446 and again from February 1451 to May 1481. April 8, 1432 – May 12, 1481; died at 49. Alive at the same time as Leonardo da Vinci, Christopher Columbus, Erasmus, François Villon, and Nicholas of Cusa. Wiki link