Columbia subject headings:
Emperors--Rome--Biography.
Emperors--Rome.
Harvard subject headings:
Emperors--Monuments--Rome.
Emperors--Rome
Emperors--Rome--Biography
Emperors--Rome--Portraits
Portrait sculpture, Roman.
Propaganda, Roman.
Rome--History--Empire, 30 B.C.-284 A.D.
Princeton subject headings:
Emperors--Rome--Biography.
Emperors--Rome.