Towards the middle of the fifteenth century appeared Bartolommeo Vaccarini, whose paintings, signed with the artist's name, Baruffaldi declares that he himself had seen. There was also Oliviero da S. Giovanni, a fresco painter, whose Madonnas were then by no means rare in the city. To these we may add Ettore Bonacossa, painter of that holy image of our Lady called del Duomo, which not long ago was solemnly crowned, at the foot of which is read the name of Ettore, and the year 1448. Still they were only artists of mediocrity; but others attained greater celebrity, having modernized their style in some degree, after the example, as I incline to think, of two foreigners. One of these was Pier della Francesca, invited to Ferrara to paint in the palace of Schivanoia by Niccolo d'Este, as it is conjectured in a note to Baruffaldi. Surprised by sickness, he was unable to complete the work, but he painted there a few apartments, which yet remain as a model for young artists. The other was Squarcione, who also, in the days of Niccolo d'Este and his son Borso, opened a school in Padua; whose manner had followers without number throughout Italy, and must have influenced the Ferrarese artists; distant, perhaps, two days' journey from Padua. Possessing such means appeared Cosimo Tura, whom Vasari and other historians term Cosmè, and give him as pupil to Galasso. He was court-painter in the time of Borso d'Este and Tito Strozzi, who left a poetic eulogy upon him. His style is dry and humble, as was customary in that age, still far removed from true dignity and softness. The figures are treated in the style of Mantegna, the muscles clearly expressed, the architecture drawn with care, the bassi-relievi highly ornamented, and laboured in the most minute and exact taste. This is remarkable in his miniatures, which are pointed out to foreigners in the choral books of the cathedral and the Certosa, as extreme rarities. Nor does he vary in his oil paintings; as in his Presepio, in the sacristy of the cathedral; the Acts of S. Eustace, in the monastery of S. Guglielmo; various Saints surrounding the Virgin, in the church of S. Giovanni. In his larger figures he is not so much commended; though Baruffaldi speaks highly of his works in fresco, in the forementioned palace of Schivanoia. The design was distributed into twelve compartments, in a grand hall; and it might well be entitled a small poetic series, representing the exploits of Borso. In each picture was included a month in the year, which was scientifically indicated with astronomical symbols and classical deities, adapted to each; an idea very probably borrowed from the saloon at Padua. In each month, too, was introduced the prince in his usual employment at such season; in the judgment-hall, in the chase, at spectacles, with great variety of circumstances, and full of poetry in the execution.