The interior of the sacristy is planned with a noble sense of unity. For the purpose of illuminating a gallery of statues, the lighting may be praised without reserve; and there is no doubt whatever that Michelangelo intended every tabernacle to be filled with figures, and all the whitewashed spaces of the walls to be encrusted with bas-reliefs in stucco or painted in fresco. The recesses or niches, taking the form of windows, are graduated in three degrees of depth to suit three scales of sculptural importance. The sepulchres of the Dukes had to emerge into prominence; the statues subordinate to these main masses occupied shallower recesses; the shallowest of all, reserved for minor statuary, are adorned above with garlands, which suggest the flatness of the figures to be introduced. Architecturally speaking, the building is complete; but it sadly wants the plastic decoration for which it was designed, together with many finishing touches of importance. It is clear, for instance, that the square pedestals above the double pilasters flanking each of the two Dukes were meant to carry statuettes or candelabra, which would have connected the marble panelling with the cornices and stucchi and frescoed semicircles of the upper region. Our eyes are everywhere defrauded of the effect calculated by Michelangelo when he planned this chapel. Yet the total impression remains harmonious. Proportion has been observed in all the parts, especially in the relation of the larger to the smaller orders, and in the balance of the doors and windows. Merely decorative carvings are used with parsimony, and designed in a pure style, although they exhibit originality of invention. The alternation of white marble surfaces and mouldings with pietra serena pilasters, cornices, and arches, defines the structural design, and gives a grave but agreeable sense of variety. Finally, the recess behind the altar adds lightness and space to what would otherwise have been a box. What I have already observed when speaking of the vestibule to the library must be repeated here: the whole scheme is that of an exterior turned outside in, and its justification lies in the fact that it demanded statuary and colour for its completion. Still the bold projecting cornices, the deeper and shallower niches resembling windows, have the merit of securing broken lights and shadows under the strong vertical illumination, all of which are eminently picturesque. No doubt remains now that tradition is accurate in identifying the helmeted Duke with Lorenzo de' Medici, and the more graceful seated hero opposite with Giuliano. The recumbent figures on the void sepulchres beneath them are with equal truth designated as Night and Day, Morning and Evening. But Michelangelo condescended to no realistic portraiture in the statues of the Dukes, and he also meant undoubtedly to treat the phases of time which rule man's daily life upon the planet as symbols for far-reaching thoughts connected with our destiny. These monumental figures are not men, not women, but vague and potent allegories of our mortal fate. They remain as he left them, except that parts of Giuliano's statue, especially the hands, seem to have been worked over by an assistant. The same is true of the Madonna, which will ever be regarded, in her imperfectly finished state, as one of the finest of his sculptural conceptions. To Montelupo belongs the execution of S. Damiano, and to Montorsoli that of S. Cosimo. Vasari says that Tribolo was commissioned by Michelangelo to carve statues of Earth weeping for the loss of Giuliano, and Heaven rejoicing over his spirit. The death of Pope Clement, however, put a stop to these subordinate works, which, had they been accomplished, might perhaps have shown us how Buonarroti intended to fill the empty niches on each side of the Dukes.
When Michelangelo left Florence for good at the end of 1534, his statues had not been placed; but we have reason to think that the Dukes and the four allegorical figures were erected in his lifetime. There is something singular in the maladjustment of the recumbent men and women to the curves of the sarcophagi, and in the contrast between the roughness of their bases and the smooth polish of the chests they rest on. These discrepancies do not, however, offend the eye, and they may even have been deliberately adopted from a keen sense of what the Greeks called asymmetreia as an adjunct to effect. It is more difficult to understand what he proposed to do with the Madonna and her two attendant saints. Placed as they now are upon a simple ledge, they strike one as being too near the eye, and out of harmony with the architectural tone of the building. It is also noticeable that the saints are more than a head taller than the Dukes, while the Madonna overtops the saints by more than another head. We are here in a region of pure conjecture; and if I hazard an opinion, it is only thrown out as a possible solution of a now impenetrable problem. I think, then, that Michelangelo may have meant to pose these three figures where they are, facing the altar; to raise the Madonna upon a slightly projecting bracket above the level of SS. Damiano and Cosimo, and to paint the wall behind them with a fresco of the Crucifixion. That he had no intention of panelling that empty space with marble may be taken for granted, considering the high finish which has been given to every part of this description of work in the chapel. Treated as I have suggested, the statue of the Madonna, with the patron saints of the House of Medici, overshadowed by a picture of Christ's sacrifice, would have confronted the mystery of the Mass during every celebration at the altar. There are many designs for the Crucifixion, made by Michelangelo in later life, so lofty as almost to suggest a group of figures in the foreground, cutting the middle distance.
At the close of Michelangelo's life the sacristy was still unfinished. It contained the objects I have described—the marble panelling, the altar with its candelabra, the statues of the Dukes and their attendant figures, the Madonna and two Medicean patron saints—in fact, all that we find there now, with the addition of Giovanni da Udine's frescoes in the cupola, the relics of which have since been buried under cold Florentine whitewash.
All the views I have advanced in the foregoing paragraphs as to the point at which Michelangelo abandoned this chapel, and his probable designs for its completion, are in the last resort based upon an important document penned at the instance of the Duke of Florence by Vasari to Buonarroti, not long before the old man's death in Rome. This epistle has so weighty a bearing upon the matter in hand that I shall here translate it. Careful study of its fluent periods will convince an unprejudiced mind that the sacristy, as we now see it, is even less representative of its maker's design than it was when Vasari wrote. The frescoes of Giovanni da Udine are gone. It will also show that the original project involved a wealth of figurative decoration, statuary, painting, stucco, which never arrived at realisation.
VII
Vasari, writing in the spring of 1562, informs Michelangelo concerning the Academy of Design founded by Duke Cosimo de' Medici, and of the Duke's earnest desire that he should return to Florence in order that the sacristy at S. Lorenzo may be finished. "Your reasons for not coming are accepted as sufficient. He is therefore considering —forasmuch as the place is being used now for religious services by day and night, according to the intention of Pope Clement—he is considering, I say, a plan for erecting the statues which are missing in the niches above the sepulchres and the tabernacles above the doors. The Duke then wishes that all the eminent sculptors of this academy, in competition man with man, should each of them make one statue, and that the painters in like manner should exercise their art upon the chapel. Designs are to be prepared for the arches according to your own project, including works of painting and of stucco; the other ornaments and the pavement are to be provided; in short, he intends that the new academicians shall complete the whole imperfect scheme, in order that the world may see that, while so many men of genius still exist among us, the noblest work which was ever yet conceived on earth has not been left unfinished. He has commissioned me to write to you and unfold his views, begging you at the same time to favour him by communicating to himself or to me what your intentions were, or those of the late Pope Clement, with regard to the name and title of the chapel; moreover, to inform us what designs you made for the four tabernacles on each side of the Dukes Lorenzo and Giuliano; also what you projected for the eight statues above the doors and in the tabernacles of the corners; and, finally, what your idea was of the paintings to adorn the flat walls and the semicircular spaces of the chapel. He is particularly anxious that you should be assured of his determination to alter nothing you have already done or planned, but, on the contrary, to carry out the whole work according to your own conception. The academicians too are unanimous in their hearty desire to abide by this decision. I am furthermore instructed to tell you, that if you possess sketches, working cartoons, or drawings made for this purpose, the same would be of the greatest service in the execution of his project; and he promises to be a good and faithful administrator, so that honour may ensue. In case you do not feel inclined to do all this, through the burden of old age or for any other reason, he begs you at least to communicate with some one who shall write upon the subject; seeing that he would be greatly grieved, as indeed would the whole of our academy, to have no ray of light from your own mind, and possibly to add things to your masterpiece which were not according to your designs and wishes. We all of us look forward to being comforted by you, if not with actual work, at least with words. His Excellency founds this hope upon your former willingness to complete the edifice by allotting statues to Tribolo, Montelupo, and the Friar (Giovanni Angelo Montorsoli). The last named of these masters is here, eagerly desirous to have the opportunity of doing you honour. So are Francesco Sangallo, Giovanni Bologna, Benvenuto Cellini, Ammanato, Rossi and Vincenzio Danti of Perugia, not to mention other sculptors of note. The painters, headed by Bronzino, include many talented young men, skilled in design, and colourists, quite capable of establishing an honourable reputation. Of myself I need not speak. You know well that in devotion, attachment, love, and loyalty (and let me say this with prejudice to no one) I surpass the rest of your admirers by far. Therefore, I entreat you, of your goodness, to console his Excellency, and all these men of parts, and our city, as well as to show this particular favour to myself, who have been selected by the Duke to write to you, under the impression that, being your familiar and loving friend, I might obtain from you some assistance of sterling utility for the undertaking. His Excellency is prepared to spend both substance and labour on the task, in order to honour you. Pray then, albeit age is irksome, endeavour to aid him by unfolding your views; for, in doing so, you will confer benefits on countless persons, and will be the cause of raising all these men of parts to higher excellence, each one of whom has learned what he already knows in the sacristy, or rather let me say our school."
This eloquent despatch informs us very clearly that the walls of the sacristy, above the tall Corinthian order which, encloses the part devoted to sculpture, were intended to be covered with stucco and fresco paintings, completing the polychromatic decoration begun by Giovanni da Udine in the cupola. Twelve statues had been designed for the niches in the marble panelling; and one word used by Vasari, facciate, leaves the impression that the blank walls round and opposite the altar were also to be adorned with pictures. We remain uncertain how Michelangelo originally meant to dispose of the colossal Madonna with SS. Damian and Cosimo.
Unhappily, nothing came of the Duke's project. Michelangelo was either unable or unwilling—probably unable—to furnish the necessary plans and drawings. In the eighth chapter of this book I have discussed the hesitations with regard to the interior of the sacristy which are revealed by some of his extant designs for it. We also know that he was not in the habit of preparing accurate working cartoons for the whole of a large scheme, but that he proceeded from point to point, trusting to slight sketches and personal supervision of the work. Thus, when Vasari wrote to him from Rome about the staircase of the library, he expressed a perfect readiness to help, but could only remember its construction in a kind of dream. We may safely assume, then, that he had not sufficient material to communicate; plans definite enough in general scope and detailed incident to give a true conception of his whole idea were lacking.
VIII
Passing to aesthetical considerations, I am forced to resume here what I published many years ago about the Sacristy of S. Lorenzo, as it now exists. Repeated visits to that shrine have only renewed former impressions, which will not bear to be reproduced in other language, and would lose some of their freshness by the stylistic effort. No other course remains then but to quote from my own writings, indorsing them with such weight as my signature may have acquired since they were first given to the world.