Don Fadrique, Master of the Order of Santiago, and half-brother of Pedro el Cruel, having confessed allegiance to the King, came one day to Seville, after a campaign with rebels in Murcia. The Master of Santiago went to the Alcázar with the intention of paying a visit to his half-brother, the King. Pedro was playing at backgammon in his private apartment of the palace when Don Fadrique came to him.

The monarch received his general with genial courtesies, and bade him stay in the Alcázar. Leaving Pedro for a while, the Master went to the rooms of Maria de Padilla. He found her agitated and pale, but the sadness of her beautiful countenance did not cause him to suspect what lay upon her mind. Maria knew that Pedro longed to rid himself of all possible claimants to the throne. His eldest half-brother Enrique was in France, plotting against the Castilian throne. Pedro still dreaded a rising under Fadrique. He apparently doubted his professed fealty, and he had planned his murder. It is said that the Master of Santiago received hints of the fate that awaited him. But he returned to the quarters of the King, who was in company with several members of his court.

Pedro had shut himself in an inner room, which had a wicket to it. From the wicket he shouted to his soldiers: 'Kill the Master of Santiago!' The bowmen obeyed. Fadrique drew his sword and made a stand, but he was soon overpowered, and struck down by blows on the head. The Master's servants were next seized and slaughtered. One of the train ran to the room of Maria de Padilla, pursued by his assailants, and threw himself behind Doña Beatrice, one of Maria's daughters. Pedro was among the pursuers. He tore the man from the arms of Beatrice, stabbed him, and gave him into the hands of his assassins. Returning to the room where Don Fadrique was expiring, Pedro saw that his half-brother was still breathing. Drawing his dagger, the King gave it to an attendant, and commanded him to kill the Master outright.

During the siege of Seville by Fernando el Santo, the fortified palace was the chief point of attack. The massive walls of the Alcázar long resisted the assault of the besiegers. But the beleaguered Moors were at length compelled to offer surrender to the knights of the Cross. On the day of St. Clement the gates were thrown open, and San Fernando rode into the courtyard. In the King's hand was a sword; on his saddle the ivory image of the Holy Virgin. By his side rode Don Garcia de Varga and his brother Don Diego, the Condé Lorenzo, Pelago, and other brave cavaliers. The Khalif of the Alcázar escaped by the gate near the Hospital del Sangre. Henceforward, the palace was to be the residence of the kings of Castile.

In 1379 Juan I. lived in the Alcázar. The King ascended the throne without opposition. Trouble arose soon with Portugal, and Juan marched at the head of thirty-four thousand soldiers into the enemy's territory. The Portuguese had a small force of only ten thousand men, including a few Englishmen. Near the village of Aljubarrota the armies met. There was a great battle, in which the Portuguese troops fought valiantly, and drove back the invaders.

Don Juan was ill and weak during the engagement. He was carried on a litter by his knights, and in the retreat, the King was put on a mule, and hurried from the scene of action to the Tagus. Here the monarch embarked in a small boat for Lisbon, whence he returned to Seville to mourn his defeat in the seclusion of the Alcázar.

Isabel and Fernando often sought the tranquil paths of this garden. The Catholic Queen and her Consort lived here in great state, in the palmy days of Seville, dispensing justice, listening to the counsels of Torquemada and the officers of the Holy Inquisition, and consulting with Columbus regarding the expansion of their realm and the development of trade with the New World. Many were the hours passed by the blue-eyed, fair-haired Queen in the private chapel.

The pious Philip II. came here, though he preferred his mountain palace of the Escorial. He ordered the portraits of the Kings of Spain to be painted in the Hall of the Ambassadors. As we have read, Philip incurred the resentment of the Sevillian merchants by his confiscation of their ingots. But the prelates and clergy of the city honoured the sovereign, who always supported the Church and favoured the priests. In his reign the Primate of Spain was almost as wealthy as the Pope. The Archbishop of Seville received an income of eighty thousand ducats a year.

Philip spent his time at the Alcázar in his usual daily labours, writing like a clerk in his private room until the small hours of the morning. Every morning he attended Mass. The King lived simply, for he feared the gout. But in spite of this form of frugality, Philip spent his revenue freely in maintaining a large household. In his retinue there were fifteen hundred persons, including forty pages, all of noble family.

In the Queen's train there were twenty-six ladies-in-waiting, and four physicians were in constant attendance on Her Majesty. We may picture Philip moodily roaming in the gardens, dressed in black velvet, with a plumed cap. From his neck was suspended the fine jewel of the Golden Fleece. He wore sober clothes, and changed his suits once every month for new ones. His wear, like the cast of his mind, was sombre. A dread of society possessed the King, and in his later days he became more taciturn and morose.