San Bernardino Albizzeschi, born of a noble family in 1380, the year of St Catherine's death, may be said to have carried on, in part, her work during the first half of this century. A zealous reformer of morals, for forty years this Franciscan friar wandered over Italy from city to city, preaching repentance, healing schisms, rebuking tyrants, stilling the bloody tumults of political factions, reconciling peoples and princes. "He converted and changed the minds and spirits of men marvellously," writes a contemporary, Vespasiano da Bisticci, "a wondrous power he had in persuading men to lay aside their mortal hatreds." He has left his mark upon almost every street of his native city, of which he refused the bishopric. In a place where he had wrought many conversions, a maker of dice represented to the saint that he and his fellow-craftsmen were being reduced to beggary, by reason of his denunciation of gambling. Bernardino bade him make tablets with the letters I.H.S. instead. This devotion to the Divine Name grew apace, above all in Ferrara and Siena; and when, worn out with his apostolic labours, Bernardino died in 1444 at Aquila, there was hardly a town through which he had passed that had not placed upon its gates and palaces, no less than on the private houses of its citizens, the sacred sign of the Name in which he had overcome the world. A young nobleman stood listening in the Campo when Bernardino preached there in 1427. "He moved me so much," he wrote in after years, "that I, too, very nearly entered his order." This was Enea Silvio Piccolomini, who, born at Corsignano in 1405, was then a student in the city and a rising poet. Two imperial visits during this epoch have left their mark in Sienese art. Sigismund III. came to Siena in 1432, on his way to be crowned in Rome, and stayed some while in the city that then, as ever, professed unalterable loyalty to the Holy Roman Empire. Memorials of his visit are the curious graffito picture of him enthroned, on the pavement of the Duomo, and a most unedifying love story, _De Duobus Amantibus_, describing an intrigue between one of his barons and a lady of Siena--written a little later by this same Enea Silvio, who had left his native city to seek his fortune elsewhere, and was now poet laureate. Frederick III. came at the beginning of 1452 to meet his bride, Leonora of Portugal. A fresco in the library of the Duomo and a pillar outside the Porta Camollia still record the event; and "all the resources of that festive art in which the Italy of the Renaissance so excelled were displayed for the entertainment of the noble pair during their stay in Siena."[49] Our poet laureate was now the Emperor's secretary and the Bishop of Siena itself. Six years later Enea Silvio Piccolomini was elected Pope in 1458, to succeed to Calixtus III., and took the title of Pius II. "Shall we raise a poet to the Chair of St Peter?" asked a rival cardinal, "and let the Church be governed on pagan principles?"