In the name of the Father, Son, and Holy Spirit. It is the business of the pope to look after the interests of the Roman empire, since the empire derives its origin and its final authority from the papacy; its origin, because it was originally transferred from Greece by and for the sake of the papacy, the popes making the transfer in order that the church might be better protected; its final authority, because the emperor is raised to his position by the pope who blesses him, crowns him, and invests him with the empire. Henry [VI] recognized this truth in respect to our predecessor, pope Celestine of blessed memory, for although for a little while after he had received the crown from the pope, he refused to admit this, later he came to his senses and besought the pope to invest him with the golden mantle of the empire. Therefore, since three persons have lately been elected king by different parties, namely, the youth [Frederick II], Philip, and Otto, so also three things must be taken into account in regard to each one, namely: the legality, the suitability, and the expediency of his election. In respect to the youth, the son of emperor Henry, at first glance it does not seem lawful to oppose his election, because it was supported by the oaths which his father received from the princes before his death. For although that oath may have been extorted from them by force, nevertheless it is not thereby rendered void; in the case of the oath which the children of Israel swore to Gibeon, they decided that, although it had been secured by fraud, it ought still to be kept. Moreover, if the oath of the princes was originally extorted from them, the emperor later recognized his sin, and released them from their oath, sending back the letters in which they promised to elect his son; then the princes, in the emperor's absence, of their own accord elected his son, and almost all of them promised him fidelity and some did him homage. Therefore it does not appear that they may lawfully break that oath. It does not seem proper for us to deprive him of his kingdom, because he has been intrusted to our guardianship and protection, and moreover it is written: "Defend the fatherless" [Ps. 82:3]. It does not seem expedient to oppose him, because, when the youth shall arrive at years of discretion and shall learn that he was deprived of his kingdom by the pope, not only will he not show us reverence, but even as far as he is able he will attack the church, and withhold from her the allegiance and dues which she should receive from the kingdom of Sicily. On the other hand, there are good reasons why it should be lawful, fitting, and expedient to oppose his election. It is lawful because the oaths of the princes were illegal, and the election was unwise. For they elected as emperor a person unsuited not only to that, but to any other office, for he was then scarcely two years old and was not yet baptized.