It was fought on 3 August 1530 between the city of Florence and the army of the Holy Roman Empire.

The Imperial forces were led by Philibert of Châlon, Prince of Orange, with reinforcements under Fabrizio Maramaldo arriving later in the battle.

In the process, the Prince of Orange was fatally shot in the chest by two arquebus balls.

Ferruccio's last response to his murderer, tu uccidi un uomo morto (you are killing a dead man) led him to long lasting fame and to become one of the major icons of the Italian risorgimento.

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