While treating of Palermo, we are bound to think again of the Emperor who inherited from his German father the ambition of the Hohenstauffens and from his Norman mother the fair fields and Oriental traditions of Sicily. The strange history of Frederick--an intellect of the Eighteenth Century born out of date, a cosmopolitan spirit in the age of Saint Louis, the Crusader who conversed with Moslem sages on the threshold of the Holy Sepulchre, the Sultan of Lucera who presented Paterini while he respected the superstition of Saracens, the anointed successor of Charlemagne, who carried his harem with him to the battle-fields of Lombardy, and turned Infidels loose upon the provinces of Christ’s Vicar--would be inexplicable, were it not that Palermo still reveals in all her monuments the _genius loci_ which gave spiritual nurture to this phœnix among kings. From his Mussulman teachers Frederick derived the philosophy to which he gave a vogue in Europe. From his Arabian predecessors he learned the arts of internal administration and finance, which he transmitted to the princes of Italy. In imitation of Oriental courts, he adopted the practice of verse composition, which gave the first impulse to Italian literature. His Grand Vizier, Piero Delle Vigne, set an example to Petrarch, not only by composing the first sonnet in Italian, but also by showing to what height a low-born secretary versed in art and law might rise. In a word, the zeal for liberal studies, the luxury of life, the religious indifferentism, the bureaucratic system of state government, which mark the age of the Italian Renaissance, found their first manifestation within the bosom of the Middle Ages in Frederick. While our King John was signing the Magna Charta, Frederick had already lived long enough to comprehend, at least in outline, what is meant by the spirit of modern culture. It is true that the so-called Renaissance followed slowly and by tortuous paths upon the death of Frederick. The Church obtained a complete victory over his family, and succeeded in extinguishing the civilization of Sicily. Yet the fame of the Emperor who transmitted questions of sceptical philosophy to Arab sages, who conversed familiarly with men of letters, who loved splendour and understood the arts of refined living, survived both long and late in Italy. His power, his wealth, his liberality of soul and lofty aspirations, formed the theme of many a tale and poem. Dante places him in hell among the heresiarchs; and truly the splendour of his supposed infidelity found for him a goodly following. Yet Dante dates the rise of Italian literature from the blooming period of the Sicilian Court. Frederick’s unorthodoxy proved no drawback to his intellectual influence. More than any other man of mediæval times he contributed, if only as the memory of a mighty name, to the progress of civilized humanity.