Columbia subject headings:
Hugo, von Montfort, 1357-1423--Criticism and interpretation.
Harvard subject headings:
Hugo, von Montfort, 1357-1423--Criticism and interpretation--Congresses.
Hugo, von Montfort, 1357-1423--Political and social views--Congresses.
Princeton subject headings:
Hugo, von Montfort, 1357-1423--Criticism and interpretation.