The Pope caused him to make the model of a façade for a palace that his Holiness desired to build beside S. Rocco, intending to avail himself of the Mausoleum of Augustus for the rest of the masonry; and, as a design for a façade, there is nothing to be seen that is more varied, more ornate, or more novel in manner and arrangement, for the reason that, as has been seen in all his works, he never consented to be bound by any law, whether ancient or modern, in matters of architecture, as one who had a brain always able to discover things new and well-varied, and in no way less beautiful. That model is now in the possession of Duke Cosimo de' Medici, who had it as a present from Pope Pius IV when he went to Rome; and he holds it among his dearest treasures. That Pope had such respect for Michelagnolo, that he was constantly taking up his defence against Cardinals and others who sought to calumniate him, and he desired that other craftsmen, however able and renowned they might be, should always go to seek him at his house; such, indeed, were the regard and reverence that he felt for him, that his Holiness did not venture, lest he might annoy him, to call upon Michelagnolo for many works which, although he was old, he could have executed. As far back as the time of Paul III Michelagnolo had made a beginning with the work of refounding, under his own direction, the Ponte S. Maria at Rome, which had been weakened by the constant flow of water and by age, and was falling into ruin. The refounding was contrived by Michelagnolo by means of caissons, and by making stout reinforcements against the piers; and already he had carried a great part of it to completion, and had spent large sums on wood and travertine on behalf of the work, when, in the time of Julius III, an assembly was held by the Clerks of the Chamber with a view to making an end of it, and a proposal was made among them by the architect Nanni di Baccio Bigio, saying that if it were allotted by contract to him it would be finished in a short time and without much expense; and this they suggested on the pretext, as it were, of doing a favour to Michelagnolo and relieving him of a burden, because he was old, alleging that he gave no thought to it, and that if matters remained as they were the end would never be seen. The Pope, who little liked being troubled, not thinking what the result might be, gave authority to the Clerks of the Chamber that they should have charge of the work, as a thing pertaining to them; and then, without Michelagnolo hearing another word about it, they gave it with all those materials, without any conditions, to Nanni, who gave no attention to the reinforcements, which were necessary for the refounding, but relieved the bridge of some weight, in consequence of having seen a great quantity of travertine wherewith it had been flanked and faced in ancient times, the result of which was to give weight to the bridge and to make it stouter, stronger, and more secure.