Meanwhile, the little Prince Ferdinand, in Aragon, was surrounded with constant contentions between his father, king of Aragon, and his half-brother Carlos. Joan, the mother of Ferdinand, was the second wife of King John. She was a proud, ambitious woman, much younger than her husband, and was of the blood royal of Castile, being the daughter of Don Frederic Henriquez, admiral of that kingdom. She hated her step-son Carlos, who was heir to the throne, as she regarded him as an obstacle to the advancement of her own child, Ferdinand. We cannot stop to note all the family broils occasioned by Joan’s jealousy. Prince Carlos seems to have been a youth of many attractions of mind and body, and was the idol of the people. So, when King John, influenced by his wife Joan, succeeded in having Carlos arrested, and placed in strict confinement, the entire kingdom was thrown into excitement. The people sprang to arms, determined to release the prince; and they were so threatening that King John fled with his wife to Saragossa. The insurrection now spread throughout Aragon, Valencia, and Navarre, and even into King John’s possessions in Sardinia and Sicily. At length, the frightened king saw the necessity of releasing his prisoner. Prince Carlos was received by the people with wild enthusiasm; and the king could only make peace with his subjects by a public acknowledgment of Carlos as his rightful heir and successor. But Carlos did not long survive this triumph. He fell sick of a fever, and died in 1461. Some historians hint that the prince was poisoned, to make way for the youthful Ferdinand, now ten years of age, and who was immediately declared heir to the throne. The queen-mother then took Ferdinand to Catalonia, to receive the homage of that province; but the Catalonian nobles, who were exasperated against the king on account of his treatment of Carlos, displayed so much hostility that the young prince and his mother were obliged to take refuge in the fortress of Gerona. Here they were at last relieved by King John. But the Catalans then seceded from the authority of the king of Aragon, and they presented the crown to the duke of Lorraine, who marched with an army of eight thousand men against the old king of Aragon, whose treasury was empty, and who had become totally blind. In this emergency, the mother of Ferdinand, who was a brave woman, placed herself at the head of such forces as she could collect; and, with her young son Ferdinand riding by her side, she heroically marched against the enemies of her husband, and attacked the duke of Lorraine with such impetuosity that she drove him in confusion from Gerona. In this encounter, young Ferdinand came near being taken captive. [Illustration: ISABELLA OF CASTILE.]