Columbia subject headings:
Papacy--History--Manuscripts--Catalogs.
Papacy--History--Sources--Bibliography--Catalogs.
Staatsarchiv Weimar--Catalogs.
Harvard subject headings:
Papacy--History--Manuscripts--Catalogs.
Papacy--History--Sources--Bibliography--Catalogs.
Staatsarchiv Weimar--Catalogs.
Princeton subject headings:
Papacy--History--Manuscripts--Catalogs.
Papacy--History--Sources--Bibliography--Catalogs.
Staatsarchiv Weimar--Catalogs.