- The major northern Italian states included:
- the Venetian Republic, based in Venice,
- the Duchy of Milan,
- the Republic of Florence,
- the Republic of Genoa, and
- the Duchy of Mantua.
- The major central Italian states included:
- the Papal States, based in Rome,
- the Grand Duchy of Tuscany,
- the Republic of Siena, and
- the Duchy of Urbino.
- The major southern Italian states included:
- the Kingdom of Naples,
- the Kingdom of Sicily, and
- the Principality of Taranto.