The pretended improvements of Colantonio del Fiore, (born 1352, died 1444,) a pupil of Francesco, neither appear to have been considerable enough in themselves, nor sufficiently authenticated, to place him at the head of a new epoch in style. Those barbarous relics of the middle ages, that meagerness of contour, dryness of colour, and want of perspective, which he is said to have abolished, had in a great measure vanished before, at the glance of Giotto. The gold grounds continued after both;[107] and if in enumerating some of his works his encomiast is in doubt whether they may not rather belong to M. Simone, what is it but a tacit confession, that the art had made no considerable progress during the course of a century? The life of Colantonio grasped nearly the half of two centuries, and the refinements for which he has been extolled must be looked for in those of his works, on whose authenticity there is no hesitation, produced on the verge of life. Such is the Madonna, &c. in Sta. Maria Nuova, a compound of harmonious hues, though painted on a gold ground; and still more in S. Lorenzo, Saint Jerome drawing a thorn from the lion's foot, the date 1436, a picture full of truth, in high esteem with foreigners, and for its better preservation removed by the fathers of the convent from the church itself to the sacristy. He had a scholar in Angiolo Franco, who has obtained the praise of Marco di Siena, for having invigorated the most successful imitation of Giotto by the tone and chiaroscuro of his master.