THE CONQUEROR, Sultan Mehmet II. Though his predecessors had already overrun most of the Christian East Roman Empire before Constantinople fell in 1453, it was Mehmet who was remembered by his fellow ʿOsmanlis and fellow Muslims as “the Conqueror” for capturing the Empire’s seat of sovereignty, carrying with it the title to world dominion.
Image here: Wikimedia Commons. Caption in:
With Jane Caplan, A Study of History, new one-volume abridgement, with new material and revisions, a Foreword by Toynbee, maps and, for the first time, illustrations, Thames & Hudson, 1972
Monochrome image cited there as:
Gentile Bellini, Sultan Mehmet II, National Gallery, London