Columbia subject headings:
Harvard subject headings:
Byzantine Empire--Foreign relations--1081-1453.
Byzantine Empire--Foreign relations--Italy--Venice.
Byzantine Empire--Foreign relations--Treaties.
Venice (Italy)--Foreign relations--697-1508.
Venice (Italy)--Foreign relations--Byzantine Empire.
Venice (Italy)--Foreign relations--Treaties.
Venice (Italy)--History--697-1508--Sources.
Princeton subject headings:
Byzantine Empire--Foreign relations--Naples (Kingdom).
Byzantine Empire--Foreign relations--Treaties.
Naples (Kingdom)--Foreign relations--Byzantine Empire.
Naples (Kingdom)--Foreign relations--Treaties.
Naples (Kingdom)--History--1016-1268--Sources.