Columbia subject headings:
Law in art--Congresses.
Law--Antiquities--Congresses.
Harvard subject headings:
Belgium--History--To 1555--Congresses.
Law--Belgium--Antiquities.
Law--Belgium--History--Congresses.
Law--Europe--Antiquities.
Law--Netherlands--Antiquities.
Law--Netherlands--History--Congresses.
Netherlands--History--To 1384--Congresses.
Princeton subject headings: