 Complete the following phrase:  some say Castuera in Extremadura, Spain around 1500 some sources put his date of birth as early as 1497 or as late as 1505 to an impoverished hidalgo family. In 1520 a civil war broke out in Castile, the Revolt of the Comuneros, and Valdivia joined the army of Spanish king Charles I. He later fought in Flanders in 1521 and Italy between 1522 and 1527, participating in the battle of Pavia as part of the troops of the Marquis of Pescara. In May 1527, Valdivia was involved in the 