Columbia subject headings:
Civilization, Medieval--13th century--Congresses.
Civilization, Medieval--14th century--Congresses.
Puglia (Italy)--Civilization--Congresses.
Puglia (Italy)--Intellectual life--Congresses.
Harvard subject headings:
Civilization, Medieval--13th century--Congresses.
Civilization, Medieval--14th century--Congresses.
Puglia (Italy)--Civilization--Congresses.
Puglia (Italy)--Intellectual life--Congresses.
Princeton subject headings:
Art, Medieval--Italy--Puglia--Congresses.
Puglia (Italy)--Antiquities--Congresses.
Puglia (Italy)--Civilization--Congresses.
Puglia (Italy)--History--Congresses.