According to Doukas, the Sultan delivered the ultimatum himself: either to surrender his city and domain to Mehmet II and keep his treasures, slaves, and other moveable property, or lose his empire, those goods and his life.
According to Doukas, the Sultan delivered the ultimatum himself. In both versions, the terms offered to David were much the same: surrender, and keep his treasures, his slaves, his family, and all of his moveable goods; or lose his empire, all of those things, and his life.