Columbia subject headings:
Law, Germanic--History--Congresses.
Law, Medieval--Congresses.
Roman law--Congresses.
Harvard subject headings:
Law, Germanic--History--Congresses.
Law, Medieval--Congresses.
Roman law--Congresses.
Princeton subject headings:
Law, Germanic--History--Congresses.
Law, Medieval--Congresses.
Roman law--Congresses.