Columbia subject headings:
Emperors--Rome--Duties.
Regency.
Rome--Politics and government--30 B.C.-476 A.D.
Social classes--Rome.
Harvard subject headings:
Emperors--Rome--Duties
Regency.
Rome--Politics and government--30 B.C.-476 A.D.
Social classes--Rome
Princeton subject headings:
Emperors--Rome--Duties.
Regency.
Rome--Politics and government--30 B.C.-476 A.D.
Social classes--Rome.