In 1568 died Don Carlos, Prince of Asturias, the son of Philip II. of Spain; and in the same year died Isabella of Valois, the young and beautiful queen of the Spanish monarch. Legend has connected the names of Carlos and Isabella, and a mystery hangs over them which research has failed to dispel. Their supposed love, their untimely fate, and the suspicion that their death was due to the jealousy of the king, have proved a prolific theme for fiction, and the story of the supposed unhappy fate of the two has passed from the domain of history into that of romance and the drama, there being more than one fine play based on the loves and misfortunes of Carlos and Isabella. But sober history tells nothing of the kind, and it is with history that we are here concerned. Carlos, the heir of the throne of Spain, was born in 1545. He was a bold, headstrong boy, reckless in disposition, fond of manly exercises, generous to a fault, fearless of heart, and passionately desirous of a military life. In figure he was deformed, one shoulder being higher and one leg longer than the other, while his chest was flat and his back slightly humped. His features were not unhandsome, though very pale, and he spoke with some difficulty. He was feeble and sickly as a boy, subject to intermittent fever, and wasted away so greatly that it seemed as if he would not live to manhood. Such were the mental and physical characteristics of the princely youth who while still young was betrothed by treaty to the beautiful French princess Isabella of Valois. The marriage was not destined to take place. Before the treaty was ratified, Queen Mary of England, Philip’s wife, died, and his name was substituted for that of his son in the marriage treaty. The wedding ceremony took place at Toledo, in February, 1560, and was celebrated with great splendor. Carlos was present, and may have felt some resentment at being robbed by his father of this beautiful bride. Romantic historians tell us that Isabella felt a tender sentiment for him, a very unlikely statement in view of the fact that he was at that time a sickly, ill-favored boy of only fourteen years of age. Shortly after the marriage Carlos was formally recognized as heir to the crown.