Stefano di Moldavia e Vlad III di Valacchia

Stephen The Great of Moldavia (1457 - 1504) and Vlad Dracula The Impaler of Wallachia (1448,1456 - 1462,1476 - 1477). Both the Rulers were formidable enemies of the Ottoman Sultan Mehmed II The Conqueror (1444 - 1446,1451 - 1481), who cast down the Byzantine Empire