Columbia subject headings:
Crusades--Influence--Congresses.
Latin Orient--Congresses.
Harvard subject headings:
Crusades--Influence--Congresses.
Latin Orient--Congresses.
Princeton subject headings:
Crusades--Influence--Congresses.
France--Relations--Palestine--Middle Ages, 600-1500--Congresses.
Latin Orient--Congresses.
Palestine--Relations--France--Middle Ages, 600-1500--Congresses.