As far back as the time of Leo X there had been quarried at Carrara, together with the marbles for the façade of S. Lorenzo in Florence, another block of marble nine braccia and a half high and five braccia wide at the foot. With this block of marble Michelagnolo Buonarroti had thought of making a giant in the person of Hercules slaying Cacus, intending to place it in the Piazza beside the colossal figure of David formerly made by him, since both the one and the other, David and Hercules, were emblems of the Palace. He had made several designs and various models for it, and had sought to gain the favour of Pope Leo and of Cardinal Giulio de' Medici, saying that the David had many defects caused by the sculptor Maestro Andrea, who had first blocked it out and spoiled it. But by reason of the death of Leo the façade of S. Lorenzo was for a time abandoned, and also this block of marble. Now afterwards, Pope Clement having conceived a desire to avail himself of Michelagnolo for the tombs of the heroes of the house of Medici, which he wished to have constructed in the Sacristy of S. Lorenzo, it became once more necessary to quarry marbles; and the head of these works, keeping the accounts of the expenses, was Domenico Buoninsegni. This man tried to tempt Michelagnolo to make a secret partnership with him in the matter of the stone-work for the façade of S. Lorenzo; but Michelagnolo refused, not consenting that his genius should be employed in defrauding the Pope, and Domenico conceived such hatred against him that he went about ever afterwards opposing his undertakings, in order to annoy and humiliate him, but this he did covertly. He thus contrived to have the façade discontinued and the sacristy pushed forward, which two works, he said, were enough to keep Michelagnolo occupied for many years. And as for the marble for the making of the giant, he urged the Pope that it should be given to Baccio, who at that time had nothing to do; saying that through the emulation of two men so eminent his Holiness would be served better and with more diligence and promptitude, rivalry stimulating both the one and the other in his work. The counsel of Domenico pleased the Pope, and he acted in accordance with it. Baccio, having obtained the marble, made a great model in wax, which was a Hercules who, having fixed the head of Cacus between two stones with one knee, was constraining him with great force with the left arm, holding him crouching under his legs in a distorted attitude, wherein Cacus revealed his suffering and the strain of the weight of Hercules upon him, which was rending asunder every least muscle in his whole body. Hercules, likewise, with his head bent down close against his enemy, grinding and gnashing his teeth, was raising the right arm and with great vehemence giving him another blow with his club, in order to dash his head to pieces.
Michelagnolo, as soon as he had heard that the marble had been given to Baccio, was very much displeased; but, for all the efforts that he made in this matter, he was never able to turn the Pope from his purpose, so completely had he been satisfied by Baccio's model; to which reason were added his promises and boasts, for he boasted that he would surpass the David of Michelagnolo, and he was also assisted by Buoninsegni, who said that Michelagnolo desired everything for himself. Thus was the city deprived of a rare ornament, such as that marble would undoubtedly have been when shaped by the hand of Buonarroti. The above-mentioned model of Baccio is now to be found in the guardaroba of Duke Cosimo, by whom it is held very dear, and by the craftsmen as a rare work.
Baccio was sent to Carrara to see this marble, and the Overseers of the Works of S. Maria del Fiore were commissioned to transport it by water, along the River Arno, as far as Signa. The marble having been conveyed there, within a distance of eight miles from Florence, when they set about removing it from the river in order to transport it by land, the river being too low from Signa to Florence, it fell into the water, and on account of its great size sank so deep into the sand, that the Overseers, with all the contrivances that they used, were not able to drag it out. For which reason, the Pope wishing that the marble should be recovered at all costs, by order of the Wardens of Works Pietro Rosselli, an old builder of great ingenuity, went to work in such a manner that, having diverted the course of the water into another channel and cut away the bank of the river, with levers and windlasses he moved it, dragged it out of the Arno, and brought it to solid ground, for which he was greatly extolled. Tempted by this accident to the marble, certain persons wrote verses, both Tuscan and Latin, ingeniously ridiculing Baccio, who was detested for his loquacity and his evil-speaking against Michelagnolo and all the other craftsmen. One among them took for his verses the following subject, saying that the marble, after having been approved by the genius of Michelagnolo, learning that it was to be mangled by the hands of Baccio, had thrown itself into the river out of despair at such an evil fate.
While the marble was being drawn out of the water, a difficult process which took time, Baccio found, on measuring it, that it was neither high enough nor wide enough to enable him to carve the figures of his first model. Whereupon he went to Rome, taking the measurements with him, and made known to the Pope how he was constrained by necessity to abandon his first design and make another. He then made several models, and out of their number the Pope was most pleased with one in which Hercules had Cacus between his legs, and, grasping his hair, was holding him down after the manner of a prisoner; and this one they resolved to adopt and to carry into execution. On returning to Florence, Baccio found that the marble had been conveyed into the Office of Works of S. Maria del Fiore by Pietro Rosselli, who had first placed on the ground some planks of walnut-wood planed square, and laid lengthways, which he kept changing according as the marble moved forward, under which and upon those planks he placed some round rollers well shod with iron, so that by pulling the marble with three windlasses, to which he had attached it, little by little he brought it with ease into the Office of Works. The block having been set up there, Baccio began a model in clay as large as the marble and shaped according to the last one which he had made previously in Rome; and he finished it, working with great diligence, in a few months. But with all this it appeared to many craftsmen that there was not in this model that spirited vivacity that the action required, nor that which he had given to his first model. Afterwards, beginning to work at the marble, Baccio cut it away all round as far as the navel, laying bare the limbs in front, and taking care all the time to carve the figures in such a way that they might be exactly like those of the large model in clay.
At this same time Baccio had undertaken to execute in painting an altar-piece of considerable size for the Church of Cestello, and for this he had made a very beautiful cartoon containing a Dead Christ surrounded by the Maries, with Nicodemus and other figures; but, for a reason that we shall give below, he did not paint the altar-piece. He also made at this time, in order to paint a picture, a cartoon in which was Christ taken down from the Cross and held in the arms of Nicodemus, with His Mother, who was standing, weeping for Him, and an Angel who was holding in his hands the Nails and the Crown of Thorns. Setting himself straightway to colour it, he finished it quickly and placed it on exhibition in the workshop of his friend Giovanni di Goro, the goldsmith, in the Mercato Nuovo, in order to hear the opinions of men and particularly what Michelagnolo said of it. Michelagnolo was taken by the goldsmith Piloto to see it, and, after he had examined every part, he said that he marvelled that so good a draughtsman as Baccio should allow a picture so crude and wanting in grace to leave his hands, that he had seen the most feeble painters executing their works in a better manner, and that this was no art for Baccio. Piloto reported Michelagnolo's judgment to Baccio, who, for all the hatred that he felt against him, recognized that he spoke the truth. Certainly Baccio's drawings were very beautiful, but in colours he executed them badly and without grace, and he therefore resolved to paint no more with his own hand; but he took into his service one who handled colours passing well, a young man called Agnolo, the brother of the excellent painter Franciabigio, who had died a few years before. To this Agnolo he desired to entrust the execution of the altar-piece for Cestello, but it remained unfinished, the reason of which was the change of government in Florence, which took place in the year 1527, when the Medici left Florence after the sack of Rome. For Baccio did not think himself safe, having a private feud with a neighbour at his villa of Pinzirimonte, who was of the popular party; and after he had buried at that villa some cameos and little antique figures of bronze, which belonged to the Medici, he went off to live in Lucca. There he remained until the time when the Emperor Charles V came to receive his crown at Bologna; whereupon he presented himself before the Pope and then went with him to Rome, where he was given rooms in the Belvedere, as before.
While Baccio was living there, his Holiness resolved to fulfil a vow that he had made when he was shut up in the Castello di S. Angelo; which vow was that he would place on the summit of the great round tower of marble, which is in front of the Ponte di Castello, seven large figures of bronze, each six braccia in length, and all lying down in different attitudes, as it were vanquished by an Angel that he wished to have set up on the centre of the tower, upon a column of variegated marble, the Angel being of bronze with a sword in the hand. By this figure of the Angel he wished to represent the Angel Michael, the guardian and protector of the Castle, whose favour and assistance had delivered him and brought him out of that prison; and the seven recumbent figures were to personify the seven Mortal Sins, demonstrating that with the help of the victorious Angel he had conquered and thrown to the ground his enemies, evil and impious men, who were represented by those seven figures of the seven Mortal Sins. For this work his Holiness caused a model to be made; which having pleased him, he ordained that Baccio should begin to make the figures in clay of the size that they were to be, in order to have them cast afterwards in bronze. Baccio began the work, and finished in one of the apartments in the Belvedere one of those figures in clay, which was much extolled. At the same time, also, in order to divert himself, and wishing to see how he would succeed in casting, he made many little figures in the round, two-thirds of a braccio in height, as of Hercules, Venus, Apollo, Leda, and other fantasies of his own, which he caused to be cast in bronze by Maestro Jacopo della Barba of Florence; and they succeeded excellently well. He presented them afterwards to his Holiness and to many lords; and some of them are now in the study of Duke Cosimo, among a collection of more than a hundred antique figures, all very choice, and others that are modern.
At this same time Baccio had made a scene of the Deposition from the Cross with little figures in low-relief and half-relief, which was a rare work; and he had it cast with great diligence in bronze. When finished, he presented it in Genoa to Charles V, who held it very dear; and a sign of this was that his Majesty gave Baccio a Commandery of S. Jago, and made him a Chevalier. From Prince Doria, also, he received many courtesies; and from the Republic of Genoa he had the commission for a statue of marble six braccia high, which was to be a Neptune in the likeness of Prince Doria, to be set up on the Piazza in memory of the virtues of that Prince and of the extraordinary benefits that his native country of Genoa had received from him. This statue was allotted to Baccio at the price of a thousand florins, of which he received five hundred at that time; and he went straightway to Carrara to block it out at the quarry of Polvaccio.
While the popular government was ruling Florence, after the departure of the Medici, Michelagnolo Buonarroti was employed on the fortifications of the city; and there was shown to him the marble that Baccio had blocked out, together with the model of the Hercules and Cacus, the intention being that if the marble had not been cut away too much Michelagnolo should take it and carve from it two figures after his own design. Michelagnolo, having examined the block, thought of a different subject; and, abandoning the Hercules and Cacus, he chose the subject of Samson holding beneath him two Philistines whom he had cast down, one being already dead, and the other still alive, against whom he was aiming a blow with the jawbone of an ass, seeking to kill him. But even as it often happens that the minds of men promise themselves at times certain things the opposite of which is determined by the wisdom of God, so it came to pass then, for, war having arisen against the city of Florence, Michelagnolo had other things to think about than polishing marble, and was obliged from fear of the citizens to withdraw from the city. Afterwards, the war being finished and peace made, Pope Clement caused Michelagnolo to return to Florence in order to finish the Sacristy of S. Lorenzo, and sent Baccio to see to the completion of the giant. Baccio, while engaged in this, took up his abode in the Palace of the Medici; and, writing almost every week to his Holiness in order to make a show of devotion, he entered, besides dealing with matters of art, into particulars relating to the citizens and those who were administering the government, with an odious officiousness likely to bring upon him even more ill-will than he had awakened before. Whereupon, when Duke Alessandro returned from the Court of his Majesty to Florence, the citizens made known to him the sinister policy that Baccio was pursuing against them; from which it followed that his work of the giant was hindered and retarded by the citizens by every means in their power.