Meanwhile, fired by a desire for vengeance, the King of Castile, after sending to Aragon the message that you have heard about, and before receiving any response, ordered seven galleys and six naos to be made ready immediately. The king sailed in one of these, thinking he might come across the aforesaid knight somewhere along the Portuguese coast. He arrived at Tavira and, having learned that he had in fact passed that way, returned to Seville. Then the king sent the galleys off in the direction of Ibiza, and war broke out all over that area.

This was at the beginning of 1357, around the time of the death of King Afonso of Portugal, whose aid had been sought by this grandson of his, King Pedro, in this war, as we have already related. The King of Aragon, well aware of the hostile attitude of the King of Castile towards him, informed Count Enrique and a number of Castilian knights who were in France at that time, out of fear of King Pedro. The count went with them to join him, and the king received them warmly, bestowing on the count a number of castles in which to house his men and enough money to maintain 800 horsemen.

When the King of Castile heard about this, he left Seville and made for Aragon, where he seized several castles, and then returned to Deza, a town belonging to him, close to the Aragonese border. As the fighting was spreading with increasing intensity, Cardinal Guillaume [de la Jugie], a legate of Pope Innocent [VI] travelled to Deza to speak to the king and to try to establish a pact between the two monarchs. He was not entirely successful in putting an end to the fighting because of the huge demands that King Pedro was making of the King of Aragon. He did, however, achieve a truce which lasted for two weeks, during which King Pedro took the town of Tarazona. The cardinal was furious with the king and said that King Pedro had seized the town while he was on his way to talk to the King of Aragon, when the truce was still in operation.