Columbia subject headings:
Harvard subject headings:
Archivo de la Corona de Aragón--Catalogs.
Benedict XIII, Antipope, 1342-1423?
Church history--Middle Ages, 600-1500--Sources.
Fernando I, King of Aragon, 1379-1416--Correspondence.
Fernando I, King of Aragon, 1379-1416--Sources--Catalogs.
Holy Roman Empire--History--1273-1517--Sources.
Papacy--History--1378-1447--Sources.
Schism, The Great Western, 1378-1417--Sources.
Sigismund, Holy Roman Emperor, 1368-1437--Correspondence.
Princeton subject headings:
Aragon (Spain)--History--To 1500--Sources.
Aragon (Spain)--Relations--Holy Roman Empire--Sources.
Benedict XIII, Antipope, 1342-1423?--Correspondence.
Church history--14th century--Sources.
Fernando I, King of Aragon, 1379-1416--Correspondence.
Holy Roman Empire--Relations--Spain--Aragon--Sources.
Sigismund, Holy Roman Emperor, 1368-1437--Correspondence.