Columbia subject headings:
Harvard subject headings:
Castles--Italy--Puglia.
Frederick II, Holy Roman Emperor, 1194-1250.
Jews--Italy--Puglia--History--To 1500.
Puglia (Italy)--Economic conditions.
Puglia (Italy)--History.
Princeton subject headings:
Castles--Italy--Puglia.
Frederick II, Holy Roman Emperor, 1194-1250.
Jews--Italy--Puglia--History--To 1500.
Puglia (Italy)--Economic conditions.
Puglia (Italy)--History.