A unit of Castilian soldiers besieging the castle of Donibane Garazi rose up against his military power. In addition to the cold of early fall, the Navarros attacked along the way the supplies they sent from Castilla for soldiers. An entire company left the camp and defected him during those days. The Duke of Alba had to go to fix the situation, and the rebel soldiers had to be treated as “colleagues and friends” if the situation was on track. The Spanish army was in the midst of the Conquest of Navarra.