Columbia subject headings:
Harvard subject headings:
Diplomats--Italy--Turin.
Diplomats--Portugal--Lisbon.
Lisbon (Portugal)--Intellectual life--18th century.
Lisbon (Portugal)--Intellectual life--19th century.
Lisbon (Portugal)--Relations--Italy--Turin.
Turin (Italy)--Intellectual life--18th century.
Turin (Italy)--Intellectual life--19th century.
Turin (Italy)--Relations--Portugal--Lisbon.
Princeton subject headings:
Diplomats--Italy--Turin.
Diplomats--Portugal--Lisbon.
Lisbon (Portugal)--Intellectual life--18th century.
Lisbon (Portugal)--Intellectual life--19th century.
Lisbon (Portugal)--Relations--Italy--Turin.
Turin (Italy)--Intellectual life--18th century.
Turin (Italy)--Intellectual life--19th century.
Turin (Italy)--Relations--Portugal--Lisbon.