from Andanças e viajes de un hidalgo español por Pero Tafur (1436-1439) [transl.]

I departed from Ferrara and passed through the March to a city called Parma, which is on the river Po and belongs to the Duke of Milan. There, passing the river, I found Nicolao Picherino, the Duke's captain-general, with 20,000 horsemen, the finest body of men I have ever seen. They say that he was going to take Bologna, which belongs to the Pope. I remained three days at Parma to see them pass, and it was a most remarkable thing to see a body of men so finely armed and mounted, and so well found in everything necessary for war, and, what was best of all, with such a discreet and able captain at their head. In this city are the finest cherries I have ever seen. From there I went to Piacenza, a city belonging to the same Duke, which is likewise a great city of 7000 or 8000 inhabitants. From there, the next day, I went to Milan, an immense city, and one of the greatest in Christendom.