Giuseppe Gonzaga (20 March 1690 – 16 August 1746) was the last Duke of Guastalla.
He was the second son of Vincenzo Gonzaga, Duke of Guastalla and Maria Vittoria Gonzaga, and was mentally handicapped.
When his elder brother Duke Antonio Ferrante died in an accident in 1729, Giuseppe was the only remaining male member of the Gonzaga family, so he became duke.
Giuseppe would probably never have married, but when he became duke a marriage was arranged in 1731 with the sixteen-year-old Eleonore von Holstein (1715–1760), daughter of Duke Leopold of Schleswig-Holstein-Sonderburg-Wiesenburg, and granddaughter of Karolina of Legnica-Brieg. The marriage remained childless.
During the War of Polish Succession the Duchy was occupied by the French for four years, between 1734 and 1738.
|Ancestors of Giuseppe Gonzaga, Duke of Guastalla|