Columbia subject headings:
Harvard subject headings:
Castles--Italy--Nogara--History--To 1500--Sources.
Forests and forestry--Italy--Ostiglia--History--To 1500--Sources.
Forgery of manuscripts--Italy--Nonantola.
Nogara (Italy)--History--Errors, inventions, etc.
Nonantola (Italy)--Charters, grants, privileges.
Nonantola (Italy)--History--Errors, inventions, etc.
Ostiglia (Italy)--History--Errors, inventions, etc.
Princeton subject headings:
Legal documents--Italy--Nonantola--Forgeries.
Nonantola (Italy)--Church history--Sources.
Nonantola (Italy)--History--Sources.