Columbia subject headings:
Books--History--400-1450--Congresses.
Family archives--Congresses.
Legal literature--History--Congresses.
Letter writing--History--Congresses.
Letters--History and criticism--Congresses.
Harvard subject headings:
Books--History--400-1450--Congresses.
Family archives--Congresses.
Legal literature--History and criticism--Congresses.
Letter writing--History--Congresses.
Letters--History and criticism--Congresses.
Princeton subject headings:
Archives--History--To 1500--Congresses.
Books--History--400-1450--Congresses.
Family archives--Congresses.
Historiography--Congresses.
Law--History--To 1500--Congresses.
Letter writing--History--To 1500--Congresses.
Letters--History and criticism--Congresses.