It is said that in the year 1302 he was summoned to Assisi, and that in the Church of S. Francesco, in the Chapel of S. Caterina, he painted all the stories of her life in fresco, which have been very well preserved; and there are therein some figures that are worthy to be praised. This chapel finished, on his passing through Arezzo, Bishop Guido, by reason of having heard that Buonamico was a gay fellow and an able painter, desired him to stop in that city and paint for him, in the Vescovado, the chapel where baptisms are now held. Buonamico, having put his hand to the work, had already done a good part of it when there befell him the strangest experience in the world, which was, according to what Franco Sacchetti relates, as follows. The Bishop had an ape, the drollest and the most mischievous that there had ever been. This animal, standing once on the scaffolding to watch Buonamico at work, had given attention to everything, and had never taken his eyes off him when he was mixing the colours, handling the flasks, beating the eggs for making the distempers, and in short when he was doing anything else whatsoever. Now, Buonamico having left off working one Saturday evening, on the Sunday morning this ape, notwithstanding that he had, fastened to his feet, a great block of wood which the Bishop made him carry in order that thus he might not be able to leap wherever he liked, climbed on to the scaffolding whereon Buonamico was used to stand to work, in spite of the very great weight of the block of wood; and there, seizing the flasks with his hands, pouring them one into another and making six mixtures, and beating up whatever eggs there were, he began to daub over with the brushes all the figures there, and, persevering in this performance, did not cease until he had repainted everything with his own hand; and this done, he again made a mixture of all the colours that were left him, although they were but few, and, getting down from the scaffolding, went off. Monday morning having come, Buonamico returned to his work, where, seeing the figures spoilt, the flasks all mixed up, and everything upside down, he stood all in marvel and confusion. Then, having pondered much in his own mind, he concluded finally that some Aretine had done this, through envy or through some other reason; wherefore, having gone to the Bishop, he told him how the matter stood and what he suspected, whereat the Bishop became very much disturbed, but, consoling Buonamico, desired him to put his hand again to the work and to repaint all that was spoilt. And because the Bishop had put faith in his words, which had something of the probable, he gave him six of his men-at-arms, who should stand in hiding with halberds while he was not at work, and, if anyone came, should cut him to pieces without mercy. The figures, then, having been painted over again, one day that the soldiers were in hiding, lo and behold! they hear a certain rumbling