“ Released upon promising not to take the kingly title until after his father’s death, the prince, again unsuccessful in an appeal to arms, took refuge in Italy with Alphonso V., king of Aragon, Naples and Sicily. In 1458 Alphonso died and John became king of Aragon, while Charles was offered the crowns of Naples and Sicily. He declined these proposals, and having been reconciled with his father returned to Navarre in 1459. Aspiring to marry a Castilian princess, he was then thrown into prison by his father, and the Catalans rose in his favour. ”

“ This insurrection soon became general and John was obliged to yield. He released his son, and recognized him as perpetual governor of Catalonia, and heir to the kingdom. Soon afterwards, however, on the 23rd of September 1461, the prince died at Barcelona, not without a suspicion that he had been poisoned by his stepmother. ”