II
At the end of the year 1528 it became clear to the Florentines that they would have to reckon with Clement VII. As early as August 18, 1527, France and England leagued together, and brought pressure upon Charles V., in whose name Rome had been sacked. Negotiations were proceeding, which eventually ended in the peace of Barcelona (June 20, 1529), whereby the Emperor engaged to sacrifice the Republic to the Pope's vengeance. It was expected that the remnant of the Prince of Orange's army would be marched up to besiege the town. Under the anxiety caused by these events, the citizens raised a strong body of militia, enlisted Malatesta Baglioni and Stefano Colonna as generals, and began to take measures for strengthening the defences. What may be called the War Office of the Florentine Republic bore the title of Dieci della Guerra, or the Ten. It was their duty to watch over and provide for all the interests of the commonwealth in military matters, and now at this juncture serious measures had to be taken for putting the city in a state of defence. Already in the year 1527, after the expulsion of the Medici, a subordinate board had been created, to whom very considerable executive and administrative faculties were delegated. This board, called the Nove della Milizia, or the Nine, were empowered to enrol all the burghers under arms, and to take charge of the walls, towers, bastions, and other fortifications. It was also within their competence to cause the destruction of buildings, and to compensate the evicted proprietors at a valuation which they fixed themselves. In the spring of 1529 the War Office decided to gain the services of Michelangelo, not only because he was the most eminent architect of his age in Florence, but also because the Buonarroti family had always been adherents of the Medicean party, and the Ten judged that his appointment to a place on the Nove di Milizia would be popular with the democracy. The patent conferring this office upon him, together with full authority over the work of fortification, was issued on the 6th of April. Its terms were highly complimentary. "Considering the genius and practical attainments of Michelangelo di Lodovico Buonarroti, our citizen, and knowing how excellent he is in architecture, beside his other most singular talents in the liberal arts, by virtue whereof the common consent of men regards him as unsurpassed by any masters of our times; and, moreover, being assured that in love and affection toward the country he is the equal of any other good and loyal burgher; bearing in mind, too, the labour he has undergone and the diligence he has displayed, gratis and of his free will, in the said work (of fortification) up to this day; and wishing to employ his industry and energies to the like effect in future; we, of our motion and initiative, do appoint him to be governor and procurator-general over the construction and fortification of the city walls, as well as every other sort of defensive operation and munition for the town of Florence, for one year certain, beginning with the present date; adding thereto full authority over all persons in respect to the said work of reparation or pertaining to it." From this preamble it appears that Michelangelo had been already engaged in volunteer service connected with the defence of Florence. A stipend of one golden florin per diem was fixed by the same deed; and upon the 22nd of April following a payment of thirty florins was decreed, for one month's salary, dating from the 6th of April.
If the Government thought to gain popular sympathy by Michelangelo's appointment, they made the mistake of alienating the aristocracy. It was the weakness of Florence at this momentous crisis in her fate, to be divided into parties, political, religious, social; whose internal jealousies deprived her of the strength which comes alone from unity. When Giambattista Busini wrote that interesting series of letters to Benedetto Varchi from which the latter drew important materials for his annals of the siege, he noted this fact. "Envy must always be reckoned as of some account in republics, especially when the nobles form a considerable element, as in ours: for they were angry, among other matters, to see a Carducci made Gonfalonier, Michelangelo a member of the Nine, a Cei or a Giugni elected to the Ten."
Michelangelo had scarcely been chosen to control the general scheme for fortifying Florence, when the Signory began to consider the advisability of strengthening the citadels of Pisa and Livorno, and erecting lines along the Arno. Their commissary at Pisa wrote urging the necessity of Buonarroti's presence on the spot. In addition to other pressing needs, the Arno, when in flood, threatened the ancient fortress of the city. Accordingly we find that Michelangelo went to Pisa on the 5th of June, and that he stayed there over the 13th, returning to Florence perhaps upon the 17th of the month. The commissary, who spent several days in conferring with him and in visiting the banks of the Arno, was perturbed in mind because Michelangelo refused to exchange the inn where he alighted for an apartment in the official residence. This is very characteristic of the artist. We shall soon find him, at Ferrara, refusing to quit his hostelry for the Duke's palace, and, at Venice, hiring a remote lodging on the Giudecca in order to avoid the hospitality of S. Mark.
An important part of Michelangelo's plan for the fortification of Florence was to erect bastions covering the hill of S. Miniato. Any one who stands upon the ruined tower of the church there will see at a glance that S. Miniato is the key to the position for a beleaguering force; and "if the enemy once obtained possession of the hill, he would become immediately master of the town." It must, I think, have been at this spot that Buonarroti was working before he received the appointment of controller-general of the works. Yet he found some difficulty in persuading the rulers of the state that his plan was the right one. Busini, using information supplied by Michelangelo himself at Rome in 1549, speaks as follows: "Whatever the reason may have been, Niccolò Capponi, while he was Gonfalonier, would not allow the hill of S. Miniato to be fortified, and Michelangelo, who is a man of absolute veracity, tells me that he had great trouble in convincing the other members of the Government, but that he could never convince Niccolò. However, he began the work, in the way you know, with those fascines of tow. But Niccolò made him abandon it, and sent him to another post; and when he was elected to the Nine, they despatched him twice or thrice outside the city. Each time, on his return, he found the hill neglected, whereupon he complained, feeling this a blot upon his reputation and an insult to his magistracy. Eventually, the works went on, until, when the besieging army arrived, they were tenable."
Michelangelo had hitherto acquired no practical acquaintance with the art of fortification. That the system of defence by bastions was an Italian invention (although Albert Dürer first reduced it to written theory in his book of 1527, suggesting improvements which led up to Vauban's method) is a fact acknowledged by military historians. But it does not appear that Michelangelo did more than carry out defensive operations in the manner familiar to his predecessors. Indeed, we shall see that some critics found reason to blame him for want of science in the construction of his outworks. When, therefore, a difference arose between the controller-general of defences and the Gonfalonier upon this question of strengthening S. Miniato, it was natural that the War Office should have thought it prudent to send their chief officer to the greatest authority upon fortification then alive in Italy. This was the Duke of Ferrara. Busini must serve as our text in the first instance upon this point. "Michelangelo says that, when neither Niccolò Capponi nor Baldassare Carducci would agree to the outworks at S. Miniato, he convinced all the leading men except Niccolò of their necessity, showing that Florence could not hold out a single day without them. Accordingly he began to throw up bastions with fascines of tow; but the result was far from perfect, as he himself confessed. Upon this, the Ten resolved to send him to Ferrara to inspect that renowned work of defence. Thither accordingly he went; nevertheless, he believes that Niccolò did this in order to get him out of the way, and to prevent the construction of the bastion. In proof thereof he adduces the fact that, upon his return, he found the whole work interrupted."
Furnished with letters to the Duke, and with special missives from the Signory and the Ten to their envoy, Galeotto Giugni, Michelangelo left Florence for Ferrara after the 28th of July, and reached it on the and of August. He refused, as Giugni writes with some regret, to abandon his inn, but was personally conducted with great honour by the Duke all round the walls and fortresses of Ferrara. On what day he quitted that city, and whither he went immediately after his departure, is uncertain. The Ten wrote to Giugni on the 8th of August, saying that his presence was urgently required at Florence, since the work of fortification was going on apace, "a multitude of men being employed, and no respect being paid to feast-days and holidays." It would also seem that, toward the close of the month, he was expected at Arezzo, in order to survey and make suggestions on the defences of the city.
These points are not insignificant, since we possess a Ricordo by Michelangelo, written upon an unfinished letter bearing the date "Venice, September 10," which has been taken to imply that he had been resident in Venice fourteen days—that is, from the 28th of August. None of his contemporaries or biographers mention a visit to Venice at the end of August 1529. It has, therefore, been conjectured that he went there after leaving Ferrara, but that his mission was one of a very secret nature. This seems inconsistent with the impatient desire expressed by the War Office for his return to Florence after the 8th of August. Allowing for exchange of letters and rate of travelling, Michelangelo could not have reached home much before the 15th. It is also inconsistent with the fact that he was expected in Arezzo at the beginning of September. I shall have to return later on to the Ricordo in question, which has an important bearing on the next and most dramatic episode in his biography.