Having a superficial mind and being full of vain confidence, Francis I. was mistaken about the forces and chances on his side, as well as about the real and natural interests of France, and also his own. There was no call for him to compromise himself in this electoral struggle of kings, and in a distant war against triumphant Islamry. He miscalculated the strong position and personal valor of the rival with whom he would have to measure swords. Charles of Austria was but nineteen, and Francis I. was twenty-three, when they entered, as antagonists, into the arena of European politics. Charles had as yet gained no battle and won no renown; while Francis I. was already a victorious king and a famous knight. But the young archduke’s able governor, William de Croy, Lord of Chievres, “had early trained him,” says M. Mignet, “to the understanding and management of his various interests; from the time that he was fifteen, Charles presided every day at his council; there he himself read out the contents of despatches which were delivered to him the moment they arrived, were it even in the dead of night; his council had become his school, and business served him for books. . . . Being naturally endowed with superior parts, a penetrating intellect and rare firmness of character, he schooled himself to look Fortune in the face without being intoxicated by her smiles or troubled at her frowns, to be astonished by nothing that happened, and to make up his mind in any danger. He had even now the will of an emperor and an overawing manner. ‘His dignity and loftiness of soul are such,’ says a contemporary writer, ‘that he seems to hold the universe under his feet.’” Charles’s position in Germany was as strong as the man himself; he was a German, a duke of Austria, of the imperial line, as natural a successor of his grandfather Maximilian at Frankfort as of his grandfather Ferdinand at Madrid. Such was the adversary, with such advantages of nationality and of person, against whom Francis I., without any political necessity, and for the sole purpose of indulging an ambitious vision and his own kingly self-esteem, was about to engage in a struggle which was to entail a heavy burden on his whole life, and bring him not in triumph to Constantinople, but in captivity to Madrid.