Columbia subject headings:
Harvard subject headings:
Dante Alighieri, 1265-1321--Characters--Manfred, King of Naples and Sicily.
Dante Alighieri, 1265-1321. Purgatorio.
Manfred, King of Naples and Sicily, approximately 1232-1266, in fiction, drama, poetry, etc.
Princeton subject headings:
Dante Alighieri, 1265-1321--Characters--Manfredi.
Dante Alighieri, 1265-1321. Purgatorio. Canto 3