Columbia subject headings:
Avignon (France)--Intellectual life.
Avignon (France)--Relations--Italy--Naples.
Naples (Italy)--Intellectual life.
Naples (Italy)--Relations--France--Avignon.
Petrarca, Francesco, 1304-1374.
Harvard subject headings:
Avignon (France)--Intellectual life.
Naples (Italy)--Intellectual life.
Petrarca, Francesco, 1304-1374
Princeton subject headings:
France--Civilization--1328-1600.
France--Relations--Italy.
Italy--Civilization--1268-1559.
Italy--Relations--France.