Columbia subject headings:
Civilization, Medieval--Sources.
Florence (Italy)--Foreign relations--Sources.
Florence (Italy)--Politics and government--1421-1737--Sources.
Florence (Italy)--Politics and government--To 1421--Sources.
Harvard subject headings:
Florence (Italy)--Foreign relations--Sources.
Florence (Italy)--Politics and government--1421-1737--Sources.
Florence (Italy)--Politics and government--To 1421--Sources.
Princeton subject headings:
Florence (Italy)--Foreign relations--Sources.
Florence (Italy)--Politics and government--1421-1737--Sources.
Florence (Italy)--Politics and government--To 1421--Sources.