Columbia subject headings:
Harvard subject headings:
Dante Alighieri, 1265-1321--Characters--Ezzelino III, da Romano.
Ezzelino III, da Romano, 1194-1259.
Generals--Italy--Biography
Guelfs and Ghibellines
Italy--History--Germanic rule, 962-1268.
Nobility--Italy--Biography
Princeton subject headings:
Dante Alighieri, 1265-1321--Characters--Ezzelino III, da Romano.
Ezzelino III, da Romano, 1194-1259.
Generals--Italy--Biography.
Guelfs and Ghibellines.
Italy--History--Germanic rule, 962-1268.
Nobility--Italy--Biography.