The Duchy of Mantua was a duchy in Lombardy, northern Italy. Its first duke was Federico II Gonzaga, member of the House of Gonzaga that ruled Mantua since 1328. In 1531, the duchy also acquired the March of Montferrat, thanks to the marriage between Gonzaga and Margaret Paleologa, Marchioness of Montferrat.
- Country
- Kingdom of Italy, Holy Roman Empire
- Inception
- March 25, 1530
