Columbia subject headings:
Frederick II, Holy Roman Emperor, 1194-1250.
Manuscripts, Latin--Facsimiles.
Montevergine (Abbey)--History--Sources.
Harvard subject headings:
Charters--Italy.
Frederick II, Holy Roman Emperor, 1194-1250.
Holy Roman Empire--History--Frederick II, 1215-1250--Sources.
Manuscripts, Latin (Medieval and modern)--Italy--Facsimiles.
Montevergine (Abbey)--History--Sources.
Princeton subject headings:
Facsimiles.
Frederick II, Holy Roman Emperor, 1194-1250.
Manuscripts, Latin--Facsimiles.
Montevergine (Abbey)--History--Sources.