Columbia subject headings:
Conflict management--Europe--History--Congresses.
Dispute resolution (Law)--Europe--History--Congresses.
Law, Medieval--Congresses.
Pacific settlement of international disputes--History--Congresses.
Harvard subject headings:
Dispute resolution (Law)--Europe--History--Congresses.
Justice, Administration of--Europe--History--Congresses.
Law, Medieval--Congresses.
Law--Europe--History--Congresses
Princeton subject headings:
Conflict management--Europe--History--Congresses.
Dispute resolution (Law)--Europe--History--Congresses.
Law, Medieval--Congresses.
Pacific settlement of international disputes--History--Congresses.