Republic of Florence
The Republic of Florence alone continued to resist the Imperial forces, which were led by the Prince of Orange. A Florentine army under Francesco Ferruccio engaged the armies of the Emperor at the Battle of Gavinana in 1530, and, although the Prince of Orange himself was killed, the Imperial army won a decisive victory and the Republic of Florence surrendered ten days later. Alessandro de' Medici was then installed as Duke of Florence.