Francisco de Carvajal
…In the 1540s Francisco de Carvajal's use of firearms in Peru prefigured the volley fire technique that developed in Europe many decades after. In the Battle of Jaquijahuana (1548) Carvajal met Pedro de Valdivia, who just like him had fought at Pavia, been at the Sack of Rome and helped to defeat Almagro. These two men were…