Columbia subject headings:
Harvard subject headings:
Brentari, Ottone, 1852-1921.
Ezzelino III, da Romano, 1194-1259--In literature.
Ezzelino III, da Romano, 1194-1259.
Ezzelino family.
Princeton subject headings:
Brentari, Ottone.
Ezzelino III, da Romano, 1194-1259--In literature.
Ezzelino III, da Romano, 1194-1259.
Ezzelino family.