The Battle of the Sarno (7 July 1460), also known as the Battle of Nola, was a decisive defeat of the forces of Ferdinand, king of Naples, by his dissatisfied barons supporting the claim of John of Anjou, duke of Lorraine. It was fought in the plain at the mouth of the Sarno River in Campania, south of Mount Vesuvius. John's forces were strengthened by reinforcements from Niccolò Piccinino, who on the 27th defeated papal and Milanese forces under Alessandro Sforza and Federigo of Urbino near San Fabiano.