Columbia subject headings:
Harvard subject headings:
Byzantine Empire--History--Constantine XI Dragases, 1448-1453--Fiction.
Constantinus XIII, Palaeologus, Emperor of the East, 1394-1453--Fiction.
Hunyadi, János, -1456--Fiction.
Princeton subject headings:
Byzantine Empire--History--Constantine XI Dragases, 1448-1453--Fiction.
Constantine XI Palaeologus, Emperor of the East, 1405-1453--Fiction.
Fiction.
Hunyadi, János, d. 1456--Fiction.