Columbia subject headings:
Families--Rome--History--Congresses.
Marriage--Rome--History--Congresses.
Parenthood--History--Congresses.
Harvard subject headings:
Civilization, Greco-Roman--Congresses
Families--Greece--History--Congresses.
Families--Greece--History--To 500--Congresses.
Families--Rome--History--Congresses.
Families--Rome--History--To 500--Congresses.
Princeton subject headings:
Civilization, Greco-Roman--Congresses.
Families--Greece--History--To 500--Congresses.
Families--Rome--History--To 500--Congresses.