Columbia subject headings:
Nobility--Rome--History.
Rome--History--Civil War, 68-69.
Rome--History--Flavians, 69-96.
Rome--History--Julio-Claudians, 30 B.C.-68 A.D.
Upper class--Rome--History.
Harvard subject headings:
Church history.
Princeton subject headings:
Nobility--Rome--History.
Rome--History--Empire, 284-476.
Rome--History--Empire, 30 B.C.-284 A.D.
Upper class--Rome--History.