Columbia subject headings:
Kings and rulers, Ancient.
Rome--Foreign relations--30 B.C.-284 A.D.
Rome--Foreign relations--510-30 B.C.
Harvard subject headings:
Kings and rulers, Ancient.
Rome--Foreign relations--30 B.C.-284 A.D.
Rome--Foreign relations--510 B.C.-30 B.C.
Princeton subject headings:
Kings and rulers, Ancient.
Rome--Foreign relations--30 B.C.-284 A.D.
Rome--Foreign relations--510-30 B.C.