It was to defend himself against the probable vengeance of France, and the present hostility of Aragon, that, in 1363, Pedro sought the alliance of Edward III of England and the heroic Black Prince. The danger was the more to be apprehended, when the king of Navarre joined his brother of Aragon. For some time, the advantage lay on the side of the Castilian; who, early in 1364, reduced several towns in Valencia, and invested the capital of that province; the siege of which, however, he was soon compelled to raise. But these temporary successes were more than counterbalanced by the activity of Henry; who, in 1365, prevailed on Bertrand du Guesclin, the count de la Marche, and other French chiefs, to aid him in his projected dethronement of the Castilian tyrant.

The French king, Charles V, anxious to avenge the cruel insult done to his royal house, espoused the cause of Henry, and commanded his disbanded soldiers to serve in the expedition destined against Castile. To meet it, Pedro, in 1366, assembled his troops at Burgos. He had not long to wait: under some noted leaders, the French soon entered Catalonia; they were favourably received by their ally the king of Aragon, and reached Calahorra unmolested, the gates of which were speedily opened to them. There Henry was solemnly proclaimed king of Castile.

The inactivity of Pedro on the invasion of his kingdom was such as to leave it a doubtful point with posterity whether he was a coward, or whether he knew too well the disaffection of his people to hazard a battle with the enemy. In opposition to the urgent remonstrances of the inhabitants, he precipitately left Burgos for Seville, without venturing his sword with his aspiring brother. Henry hastened to the abandoned city, where he was joyfully received by many deputies of the towns, and crowned in the monastery of Huelgas. With the money he found in the Alcazar, and the presents made him by the Jewish inhabitants, he was able to gratify his followers; their chiefs he rewarded more nobly: thus, to Du Guesclin he gave the lordship of Molina and Trastamara; and to the Englishman Hugh de Calverley, who, with the former, had the chief command of the auxiliaries, the city and lordship of Carrion; on his brother Tello he conferred the sovereignty of Biscay; on Sancho, another brother, that of Albuquerque and Ledesma. He now lost no time in pursuing the fugitive Pedro. Presenting himself before Toledo, he summoned that important place to surrender; which, after some deliberation, obeyed the summons. There he was joined by deputies from Avila, Segovia, Madrid, Cuenza, Ciudad Real, with the submission of those towns. He was now master of the whole of New Castile.

A Spanish King of the Fifteenth Century

The rapidity of these successes convinced the guilty Pedro that his own subjects alone would form but a poor rampart against the assaults of his brother. To procure the aid of Portugal, he sent his daughter Beatrice, now the heiress of his states (his son Alfonso was no more), into that country, with a great treasure as her marriage portion, for the infante Don Ferdinand, to whom she had been promised. He was himself soon obliged to follow her: an insurrection of the Sevillians, who openly declared for Henry, inspiring the detested tyrant with a just dread of his life, he fled into the territories of his uncle and ally. But here new mortifications awaited him: the Portuguese returned both his daughter and his treasures, on the pretext that, the states of Castile having acknowledged Henry, the latter had no wish to plunge the two kingdoms into war; all that he could obtain was permission to pass through the Portuguese territory—he durst not venture into Estremadura—into Galicia. No sooner was he arrived at Monterey, than the archbishop of Santiago, Ferdinand de Castro, and other Galician lords, joined him, and advised him to try the fortune of arms; especially as Zamora, Soria, Logroño, and other cities still held for him: but, though they offered to aid him with two thousand foot and five hundred horse, either through cowardice or distrust he rejected the proposal, and set out for Santiago, with the resolution of proceeding thence to Corunna, and embarking for Bayonne, to join his ally the prince of Wales.

[1366-1367 A.D.]

Pedro reached the city of Santiago about the middle of June. While there, he resolved on the murder of Don Suero the archbishop—a resolution almost too extraordinary to be explained, yet sufficiently characteristic of the man; who, whenever blood was to be shed, or plunder to be procured, little troubled himself about reasons for his conduct. But his most powerful motive for this atrocious deed was his desire to obtain the towns and fortresses of Don Suero. The fortresses of the murdered prelate were immediately occupied. The assassin, leaving them, as well as the support of his interests, to the care of Ferdinand de Castro, proceeded with his daughter to Corunna, where, with a fleet of twenty-two sail, he embarked for Bayonne. Thus, in three short months, without a single battle on either side, was this cowardly tyrant deprived of a powerful kingdom. It may, however, be doubted whether the majority of the people cared much for either prince; on them the fantastic cruelties of Pedro fell harmless: indeed, there is room for believing that, whatever were his cruelties towards his obnoxious and usually rebellious barons, he caused justice to be impartially administered, and wished no unnecessary imposts to be laid on the great towns.

The exiled king was well received by the English hero, who undertook to restore him to his throne. The treaty into which the two princes had entered rendered the aid of Edward almost imperative: besides, it was his interest to oppose the close ally of France; and his own personal ambition was not a little gratified by the offer of the lordship of Biscay, with 56,000 florins of gold for his own use, and 550,000 for the support of his army. To insure the punctual performance of the other conditions, Pedro delivered his daughters as hostages into the hands of the Black Prince. The enterprise was sanctioned by the English monarch, and the necessary preparations were immediately commenced.