The golden age of culture at Ferrara began in 1402, when Niccolo III. reopened the university. Twenty-seven years later Guarino da Verona made it one of the five chief seats of Southern learning. The life of this eminent scholar in many points resembles that of Filelfo, though their characters were very different. Guarino was born of respectable parents at Verona in 1370. He studied Latin in the school of Giovanni da Ravenna, and while still a lad of eighteen travelled to Constantinople at the cost of a noble Venetian, Paolo Zane, in order to learn Greek. After a residence of five years in Greece he returned to Venice, and began to lecture to crowded audiences.[297] Like all the humanists, he seems to have preferred temporary to permanent engagements--passing from Venice to Verona, from Trent to Padua, from Bologna to Florence, and everywhere acquiring that substantial reputation as a teacher to which he owed the invitation of Niccolo d'Este in 1429. He was now a man of nearly sixty, master of the two languages, and well acquainted with the method of instruction. The Marquis of Ferrara engaged him as tutor to his illegitimate son Lionello, heir apparent to his throne. For seven years Guarino devoted himself wholly to the education of this youth, who passed for one of the best scholars of his age. Granting that the reputation for learning was lightly conferred on princes by their literary parasites, it seems certain that Lionello derived more than a mere smattering in culture from his tutor. Amid the pleasures of the chase, to which he was passionately devoted, and the distractions of the gayest Court in Italy, he found time to correspond on topics of scholarship with Poggio, Filelfo, Decembrio, and Francesco Barbaro. His conversation turned habitually upon the fashionable themes of antique ethics, and his favourite companions were men of polite education. It is no wonder that the humanists, who saw in him a future Augustus, deplored his early death with unfeigned sorrow, though we, who can only judge him by the general standard of his family, may be permitted to reserve our opinion. The profile portrait of Lionello, now preserved in the National Gallery, does not, at any rate, prepossess us very strongly in his favour. [Footnote 297: See his Life by Rosmini, p. 11, for his brilliant reception at Venice.]