Columbia subject headings:
Harvard subject headings:
Civilization, Medieval--Congresses
Literature, Medieval--Themes, motives--Congresses.
Travel, Medieval--Congresses.
Travelers' writings--Congresses.
Travelers--History--Congresses.
Travelers--History--Middle Ages, 600-1500--Congresses.
Voyages and travels--Congresses.
Princeton subject headings:
Civilization, Medieval--Congresses.
Europe--Description and travel--Congresses.
Literature, Medieval--Themes, motives--Congresses.
Travelers' writings--History and criticism--Congresses.
Travelers--Europe--History--To 1500--Congresses.
Voyages and travels--History--To 1500--Congresses.