Columbia subject headings:
Germanic peoples--History--Congresses.
Germany--Antiquities, Roman--Congresses.
Germany--History--To 843--Congresses.
Germany--Relations--Rome--Congresses.
Rome--Relations--Germany--Congresses.
Harvard subject headings:
Art, Roman--Influence--Congresses.
Germany--Antiquities, Roman--Congresses.
Princeton subject headings:
Art, Roman--Influence--Congresses.
Germany--Antiquities, Roman--Congresses.