These angels are represented with such grace that I am amazed to find a man of that age capable of producing them. Stefano began this work with the intention of thoroughly completing it, and he would have succeeded had he not been forced to leave it imperfect and to return to Florence on some important affairs of his own. During this stay at Florence and in order to lose no time, he painted for the Granfigliazzi lung' Arno, between their houses and the ponte alle Carraia in a small tabernacle on one side, Our Lady seated sewing, to whom a clothed child who is seated, is offering a bird, done with such care that although it is small it merits no less praise than the more ambitious efforts of the master. On the completion of this work and the settling of his affairs, Stefano was summoned to Pistoia by the lords there, and was set by them to paint the chapel of St James in the year 1346. In the vault he did a God the Father with some apostles, and on the side walls the life of the saint, notably the scene where his mother, the wife of Zebedee, asks Jesus Christ to permit that her two sons shall sit, one on His right hand and the other on His left in the kingdom of His Father. Near this is a fine presentation of the beheading of the saint. It is thought that Maso, called Giottino, of whom I shall speak afterwards, was the son of this Stefano, and although, on account of his name, many believe him to be the son of Giotto, I consider it all but certain that he was rather the son of Stefano, both because of certain documents which I have seen, and also because of some notices written in good faith by Lorenzo Ghiberti and by Domenico del Grillandaio. However, this may be, and to return to Stefano, to him is due the credit of the greatest improvement in painting since the days of Giotto; because, besides being more varied in his inventions, he showed more unity in colouring and more shading than all the others, and above all, in diligence he had no rival. And although the foreshortenings which he made exhibit, as I have said, a bad manner owing to the difficulties of execution, yet as the first investigator of these difficulties he deserves a much higher place than those who follow after the path has been made plain for them. Thus a great debt is due to Stefano, because he who presses on through the darkness and shows the way, heartens the others, enabling them to overcome the difficulties of the way, so that in time they arrive at the desired haven. In Perugia also, in the church of S. Domenico, Stefano began in fresco the chapel of St Catherine which is still unfinished.