Complex sentence: When d'Alviano troops reached Suio, the crossbowmen fled towards Castelforte, where they met 300 further French troops, who also fled to Traetto, allowing d'Alviano to occupy Castelforte.
Split into simpler sentences: When d'Alviano troops reached Suio, the crossbowmen fled towards Castelforte, where they met 300 French troops. These also fled to Traetto, allowing d'Alviano to occupy Castelforte.