The case is different with a superb engraving by Giulio Bonasoni, a profile in a circle, dated 1546, and giving Buonarroti's age as seventy-two. This shows the man in fuller vigour than the portraits we have hitherto been dealing with. From other prints which bear the signature of Bonasoni, we see that he was interested in faithfully reproducing Michelangelo's work. What the relations between the two men were remains uncertain, but Bonasoni may have had opportunities of studying the master's person. At any rate, as a product of the burin, this profile is comparable for fidelity and veracity with Leoni's model, and is executed in the same medallion spirit.
So far, then, as I have yet pursued the analysis of Michelangelo's portraits, I take Bonasoni's engraving to be decisive for Michelangelo's appearance at the age of seventy; Leoni's model as of equal or of greater value at the age of eighty; Venusti's and Da Volterra's paintings as of some importance for this later period; while I leave the attribution of minor easel-pictures to Del Conte or to Bugiardini open.
It remains to speak of that "full relief in bronze made by Daniele da Volterra," which Vasari mentions among the four genuine portraits of Buonarroti. From the context we should gather that this head was executed during the lifetime of Michelangelo, and the conclusion is supported by the fact that only a few pages later on Vasari mentions two other busts modelled after his death. Describing the catafalque erected to his honour in S. Lorenzo, he says that the pyramid which crowned the structure exhibited within two ovals (one turned toward the chief door, and the other toward the high altar) "the head of Michelangelo in relief, taken from nature, and very excellently carried out by Santi Buglioni." The words ritratta dal naturale do not, I think, necessarily imply that it was modelled from the life. Owing to the circumstances under which Michelangelo's obsequies were prepared, there was not time to finish it in bronze of stone; it may therefore have been one of those Florentine terra-cotta effigies which artists elaborated from a cast taken after death. That there existed such a cast is proved by what we know about the monument designed by Vasari in S. Croce. "One of the statues was assigned to Battista Lorenzi, an able sculptor, together with the head of Michelangelo." We learn from another source that this bust in marble "was taken from the mask cast after his death."
The custom of taking plaster casts from the faces of the illustrious dead, in order to perpetuate their features, was so universal in Italy, that it could hardly have been omitted in the case of Michelangelo. The question now arises whether the bronze head ascribed by Vasari to Daniele da Volterra was executed during Michelangelo's lifetime or after his decease, and whether we possess it. There are eight heads of this species known to students of Michelangelo, which correspond so nicely in their measurements and general features as to force the conclusion that they were all derived from an original moulded by one masterly hand. Three of these heads are unmounted, namely, those at Milan, Oxford, and M. Piot's house in Paris. One, that of the Capitoline Museum, is fixed upon a bust of bigio morato marble. The remaining four examples are executed throughout in bronze as busts, agreeing in the main as to the head, but differing in minor details of drapery. They exist respectively in the Museo Buonarroti, the Accademia, and the Bargello at Florence, and in the private collection of M. Cottier of Paris. It is clear, then, that we are dealing with bronze heads cast from a common mould, worked up afterwards according to the fancy of the artist. That this original head was the portrait ascribed to Daniele da Volterra will be conceded by all who care to trace the history of the bust; but whether he modelled it after Michelangelo's death cannot be decided. Professional critics are of the opinion that a mask was followed by the master; and this may have been the case. Michelangelo died upon the 17th of February 1564. His face was probably cast in the usual course of things, and copies may have been distributed among his friends in Rome and Florence. Lionardo Buonarroti showed at once a great anxiety to obtain his uncle's bust from Daniele da Volterra. Possibly he ordered it while resident in Rome, engaged in winding up Michelangelo's affairs. At any rate, Daniele wrote on June 11 to this effect: "As regards the portraits in metal, I have already completed a model in wax, and the work is going on as fast as circumstances permit; you may rely upon its being completed with due despatch and all the care I can bestow upon it." Nearly four months had elapsed since Michelangelo's decease, and this was quite enough time for the wax model to be made. The work of casting was begun, but Daniele's health at this time became so wretched that he found it impossible to work steadily at any of his undertakings. He sank slowly, and expired in the early spring of 1566.
What happened to the bronze heads in the interval between June 1564 and April 1566 may be partly understood from Diomede Leoni's correspondence. This man, a native of San Quirico, was Daniele's scholar, and an intimate friend of the Buonarroti family. On the 9th of September 1564 he wrote to Lionardo: "Your two heads of that sainted man are coming to a good result, and I am sure you will be satisfied with them." It appears, then, that Lionardo had ordered two copies from Daniele. On the 21st of April 1565 Diomede writes again: "I delivered your messages to Messer Daniele, who replies that you are always in his mind, as also the two heads of your lamented uncle. They will soon be cast, as also will my copy, which I mean to keep by me for my honour." The casting must have taken place in the summer of 1565, for Diomede writes upon the 6th of October: "I will remind him (Daniele) of your two heads; and he will find mine well finished, which will make him wish to have yours chased without further delay." The three heads had then been cast; Diomede was polishing his up with the file; Daniele had not yet begun to do this for Lionardo's. We hear nothing more until the death of Daniele da Volterra. After this event occurred, Lionardo Buonarroti received a letter from Jacopo del Duca, a Sicilian bronze-caster of high merit, who had enjoyed Michelangelo's confidence and friendship. He was at present employed upon the metal-work for Buonarroti's monument in the Church of the SS. Apostoli in Rome, and on the 18th of April he sent important information respecting the two heads left by Daniele. "Messer Danielo had cast them, but they are in such a state as to require working over afresh with chisels and files. I am not sure, then, whether they will suit your purpose; but that is your affair. I, for my part, should have liked you to have the portrait from the hand of the lamented master himself, and not from any other. Your lordship must decide: appeal to some one who can inform you better than I do. I know that I am speaking from the love I bear you; and perhaps, if Danielo had been alive, he would have had them brought to proper finish. As for those men of his, I do not know what they will do." On the same day, a certain Michele Alberti wrote as follows: "Messer Jacopo, your gossip, has told me that your lordship wished to know in what condition are the heads of the late lamented Michelangelo. I inform you that they are cast, and will be chased within the space of a month, or rather more. So your lordship will be able to have them; and you may rest assured that you will be well and quickly served." Alberti, we may conjecture, was one of Daniele's men alluded to by Jacopo del Duca. It is probable that just at this time they were making several replicas from their deceased master's model, in order to dispose of them at an advantage while Michelangelo's memory was still fresh. Lionardo grew more and more impatient. He appealed again to Diomede Leoni, who replied from San Quirico upon the 4th of June: "The two heads were in existence when I left Rome, but not finished up. I imagine you have given orders to have them delivered over to yourself. As for the work of chasing them, if you can wait till my return, we might intrust them to a man who succeeded very well with my own copy." Three years later, on September 17, 1569, Diomede wrote once again about his copy of Da Volterra's model: "I enjoy the continual contemplation of his effigy in bronze, which is now perfectly finished and set up in my garden, where you will see it, if good fortune favours me with a visit from you."
The net result of this correspondence seems to be that certainly three bronze heads, and probably more, remained unfinished in Daniele da Volterra's workshop after his death, and that these were gradually cleaned and polished by different craftsmen, according to the pleasure of their purchasers. The strong resemblance of the eight bronze heads at present known to us, in combination with their different states of surface-finish, correspond entirely to this conclusion. Mr. Fortnum, in his classification, describes four as being not chased, one as "rudely and broadly chased," three as "more or less chased."
Of these variants upon the model common to them all, we can only trace one with relative certainty. It is the bust at present in the Bargello Palace, whither it came from the Grand Ducal villa of Poggio Imperiale. By the marriage of the heiress of the ducal house of Della Rovere with a Duke of Tuscany, this work of art passed, with other art treasures, notably with a statuette of Michelangelo's Moses, into the possession of the Medici. A letter written in 1570 to the Duke of Urbino by Buonarroti's house-servant, Antonio del Franzese of Castel Durante, throws light upon the matter. He begins by saying that he is glad to hear the Duke will accept the little Moses, though the object is too slight in value to deserve his notice. Then he adds: "The head of which your Excellency spoke in the very kind letter addressed to me at your command is the true likeness of Michelangelo Buonarroti, my old master; and it is of bronze, designed by himself. I keep it here in Rome, and now present it to your Excellency." Antonio then, in all probability, obtained one of the Daniele da Volterra bronzes; for it is wholly incredible that what he writes about its having been made by Michelangelo should be the truth. Had Michelangelo really modelled his own portrait and cast it in bronze, we must have heard of this from other sources. Moreover, the Medicean bust of Michelangelo which is now placed in the Bargello, and which we believe to have come from Urbino, belongs indubitably to the series of portraits made from Daniele da Volterra's model.
To sum up this question of Michelangelo's authentic portraits: I repeat that Bonasoni's engraving represents him at the age of seventy; Leoni's wax model and medallions at eighty; the eight bronze heads, derived from Daniele's model, at the epoch of his death. In painting, Marco Venusti and Daniele da Volterra helped to establish a traditional type by two episodical likenesses, the one worked into Venusti's copy of the Last Judgment (at Naples), the other into Volterra's original picture of the Assumption (at Trinità de' Monti, Rome). For the rest, the easel-pictures, which abound, can hardly now be distributed, by any sane method of criticism, between Bugiardini, Jacopo del Conte, and Venusti. They must be taken en masse, as contributions to the study of his personality; and, as I have already said, the oil-painting of the Uffizi may perhaps be ascribed with some show of probability to Bugiardini.
IV
Michelangelo's correspondence with his nephew Lionardo gives us ample details concerning his private life and interests in old age. It turns mainly upon the following topics: investment of money in land near Florence, the purchase of a mansion in the city, Lionardo's marriage, his own illnesses, the Duke's invitation, and the project of making a will, which was never carried out. Much as Michelangelo loved his nephew, he took frequent occasions of snubbing him. For instance, news reached Rome that the landed property of a certain Francesco Corboli was going to be sold. Michelangelo sent to Lionardo requesting him to make inquiries; and because the latter showed some alacrity in doing so, his uncle wrote him the following querulous epistle: "You have been very hasty in sending me information regarding the estates of the Corboli. I did not think you were yet in Florence. Are you afraid lest I should change my mind, as some one may perhaps have put it into your head? I tell you that I want to go slowly in this affair, because the money I must pay has been gained here with toil and trouble unintelligible to one who was born clothed and shod as you were. About your coming post-haste to Rome, I do not know that you came in such a hurry when I was a pauper and lacked bread. Enough for you to throw away the money that you did not earn. The fear of losing what you might inherit on my death impelled you. You say it was your duty to come, by reason of the love you bear me. The love of a woodworm! If you really loved me, you would have written now: 'Michelangelo, spend those 3000 ducats there upon yourself, for you have given us enough already: your life is dearer to us than your money.' You have all of you lived forty years upon me, and I have never had from you so much as one good word. 'Tis true that last year I scolded and rebuked you so that for very shame you sent me a load of trebbiano. I almost wish you hadn't! I do not write this because I am unwilling to buy. Indeed I have a mind to do so, in order to obtain an income for myself, now that I cannot work more. But I want to buy at leisure, so as not to purchase some annoyance. Therefore do not hurry."