Later Tudela became an important defensive point for the Kingdom of Navarre in battles with Castile and Aragon. Tudela was an Agramont party stronghold and actually the last Navarrese one to surrender to Ferdinand II of Aragon's Aragonese troops in the initial 1512 Spanish invasion of Navarre, only doing so to avoid futile bloodshed, Spanish pillaging and further confiscations to town dwellers, after the Navarrese king failed to send a relief force.