Italy in the year 1492

• Duchy of Savoy
• Marquisate of Saluzzo
• Marquisate of Montferrat
• County of Asti
• Duchy of Milan
• Republic of Venice
• Republic of Genoa
• Marquisate of Mantua
• Mirandola
• Carpi
• Correggio
• Duchy of Ferrara, Modena, and Reggio (House of Este)
• Duchy of Massa
• Republic of Lucca
• Republic of Florence
• Republic of Siena
• State of the Church
• Kingdom of Naples
• Kingdom of Sicily
• Kingdom of Sardinia

Italy in the year 1559

After the Peace of Cateau - Cambresis:

• Duchy of Savoy
• Saluzzo
• Marquisate of Montferrat (Gonzaga)
• County of Asti
• Duchy of Milan
• Republic of Venice (with Dalmatia)
• Republic of Genoa
• Duchy of Mantua (Gonzaga)
• Duchy of Parma and Piacenza (House of Farnese)
• Mirandola
• Lordship of Correggio
• Duchy of Ferrara, Modena, and Reggio
• Republic of San Marino
• Duchy of Urbino (Della Rovere)
• Duchy of Massa and Carrara (Cybo)
• Lunigiana
• Republic of Lucca
• Pietrasanta
• Duchy of Florence Grand Duchy from 1569 (House of Medici)
• State of Presidi
• Principality of Piombino
• Duchy of Castro (Farnese)
• State of the Church
• Principality of Trento (Holy Roman Empire)
• Bishopric of Brixen - Bressanone (Holy Roman Empire)
• Kingdom of Naples (Spain)
• Kingdom of Sicily (Spain)

Italy in the year 1714

After the treaties of Utrecht and Rastatt:

• Principality of Piedmont and Duchy of Savoy
• Republic of Venice
• Duchy of Parma and Piacenza
• Duchy of Modena and Reggio (House of Este)
• Republic of San Marino
• Duchy of Massa
• Grand Duchy of Tuscany (Medici. From 1735 Asburgo - Lorena)
• Bishoprics of Trento and Brixen (House of Austria)
• Kingdom of Naples

Italian after French Revolution (1796 - 1814)

After Napoleon invasion of Italy:

• Ligurian Republic (1796 - 1805), annexed to France
• Republic of Alba (1796 - 1801), annexed to France
• Cispadane Republic (1796 - 1797), formed the Cisalpine Republic
• Transpadane Republic (1797), formed the Cisalpine Republic
• Republic of Crema (1797)
• Cisalpine Republic (1797 - 1802) transformed into the Italian Republic
• Republic of Ancona (1797 - 1798), joined Roman Republic
• Roman Republic (1798 - 1800) capital Rome
• Tiberina Republic (1798 - 1799) capital Perugia, joined Roman Republic
• Parthenopaean Republic (1799) capital Neaples
• Kingdom of Etruria (1801 - 1807)
• Italian Republic (1802 - 1805)
• Kingdom of Italy (1805 - 1814)

Italy in the year 1815

After the Congress of Vienna:

• Kingdom of Sardinia
• Kingdom of Lombardy-Venetia (part of Austria-Hungary)
• South Tyrol and Trento (part of Austria-Hungary)
• Duchy of Parma
• Duchy of Modena and Reggio - union with Duchy of Massa and Carrara (Austria-Este)
• Republic of San Marino
• Duchy of Lucca
• Grand Duchy of Tuscany
• Papal States
• Kingdom of Two Sicilies