Chapter XIII: I (2)

Antonio da Sangallo had controlled the building of S. Peter's for nearly thirty years before Michelangelo succeeded to his office. During that long space of time he formed a body of architects and workmen who were attached to his person and interested in the execution of his plans. There is good reason to believe that in Sangallo's days, as earlier in Bramante's, much money of the Church had been misappropriated by a gang of fraudulent and mutually indulgent craftsmen. It was not to be expected that these people should tamely submit to the intruder who put their master's cherished model on the shelf, and set about, in his high-handed way, to refashion the whole building from the bottom to the top. During Sangallo's lifetime no love had been lost between him and Buonarroti, and after his death it is probable that the latter dealt severely with the creatures of his predecessor. The Pope had given him unlimited powers of appointing and dismissing subordinates, controlling operations, and regulating expenditure. He was a man who abhorred jobs and corruption. A letter written near the close of his life, when he was dealing only with persons nominated by himself, proves this. He addressed the Superintendents of the Fabric of S. Peter's as follows: "You know that I told Balduccio not to send his lime unless it were good. He has sent bad quality, and does not seem to think he will be forced to take it back; which proves that he is in collusion with the person who accepted it. This gives great encouragement to the men I have dismissed for similar transactions. One who accepts bad goods needed for the fabric, when I have forbidden them, is doing nothing else but making friends of people whom I have turned into enemies against myself. I believe there will be a new conspiracy. Promises, fees, presents, corrupt justice. Therefore I beg you from this time forward, by the authority I hold from the Pope, not to accept anything which is not suitable, even though it comes to you from heaven. I must not be made to appear, what I am not, partial in my dealings." This fiery despatch, indicating not only Michelangelo's probity, but also his attention to minute details at the advanced age of eighty-six, makes it evident that he must have been a stern overseer in the first years of his office, terrible to the "sect of Sangallo," who were bent, on their part, to discredit him.

The sect began to plot and form conspiracies, feeling the violent old man's bit and bridle on their mouths, and seeing the firm seat he took upon the saddle. For some reason, which is not apparent, they had the Superintendents of the Fabric (a committee, including cardinals, appointed by the Pope) on their side. Probably these officials, accustomed to Sangallo and the previous course of things, disliked to be stirred up and sent about their business by the masterful new-comer. Michelangelo's support lay, as we shall see, in the four Popes who followed Paul III. They, with the doubtful exception of Marcellus II., accepted him on trust as a thoroughly honest servant, and the only artist capable of conducting the great work to its conclusion. In the last resort, when he was driven to bay, he offered to resign, and was invariably coaxed back by the final arbiter. The disinterested spirit in which he fulfilled his duties, accepting no pay while he gave his time and energy to their performance, stood him in good stead. Nothing speaks better for his perfect probity than that his enemies were unable to bring the slightest charge of peculation or of partiality against him. Michelangelo's conduct of affairs at S. Peter's reflects a splendid light upon the tenor of his life, and confutes those detractors who have accused him of avarice.

The duel between Michelangelo and the sect opened in 1547. A letter written by a friend in Florence on the 14th of May proves that his antagonists had then good hopes of crushing him. Giovan Francesco Ughi begins by saying that he has been silent because he had nothing special to report. "But now Jacopo del Conte has come here with the wife of Nanni di Baccio Bigio, alleging that he has brought her because Nanni is so occupied at S. Peter's. Among other things, he says that Nanni means to make a model for the building which will knock yours to nothing. He declares that what you are about is mad and babyish. He means to fling it all down, since he has quite as much credit with the Pope as you have. You throw oceans of money away and work by night, so that nobody may see what you are doing. You follow in the footsteps of a Spaniard, having no knowledge of your own about the art of building, and he less than nothing. Nanni stays there in your despite: you did everything to get him removed; but the Pope keeps him, being convinced that nothing good can be done without him." After this Ughi goes on to relate how Michelangelo's enemies are spreading all kinds of reports against his honour and good fame, criticising the cornice of the Palazzo Farnese, and hoping that its weight will drag the walls down. At the end he adds, that although he knows one ought not to write about such matters, yet the man's "insolence and blackguardly shamelessness of speech" compel him to put his friend on his guard against such calumnies.

After the receipt of this letter, Michelangelo sent it to one of the Superintendents of the Fabric, on whose sympathy he could reckon, with the following indorsement in his own handwriting: "Messer Bartolommeo (Ferrantino), please read this letter, and take thought who the two rascals are who, lying thus about what I did at the Palazzo Farnese, are now lying in the matter of the information they are laying before the deputies of S. Peter's. It comes upon me in return for the kindness I have shown them. But what else can one expect from a couple of the basest scoundrelly villains?"

Nanni di Baccio Bigio had, as it seems, good friends at court in Rome. He was an open enemy of Michelangelo, who, nevertheless, found it difficult to shake him off. In the history of S. Peter's the man's name will frequently occur.

Three years elapsed. Paul III. died, and Michelangelo wrote to his nephew Lionardo on the occasion: "It is true that I have suffered great sorrow, and not less loss, by the Pope's death. I received benefits from his Holiness, and hoped for more and better. God willed it so, and we must have patience. His passage from this life was beautiful, in full possession of his faculties up to the last word. God have mercy on his soul." The Cardinal Giovan Maria Ciocchi, of Monte San Savino, was elected to succeed Paul, and took the title of Julius III. This change of masters was duly noted by Michelangelo in a letter to his "dearest friend," Giovan Francesco Fattucci at Florence. It breathes so pleasant and comradely a spirit, that I will translate more than bears immediately on the present topic: "Dear friend, although we have not exchanged letters for many months past, still our long and excellent friendship has not been forgotten. I wish you well, as I have always done, and love you with all my heart, for your own sake, and for the numberless pleasant things in life you have afforded me. As regards old age, which weighs upon us both alike, I should be glad to know how yours affects you; mine, I must say, does not make me very happy. I beg you, then, to write me something about this. You know, doubtless, that we have a new Pope, and who he is. All Rome is delighted, God be thanked; and everybody expects the greatest good from his reign, especially for the poor, his generosity being so notorious."

Michelangelo had good reason to rejoice over this event, for Julius III. felt a real attachment to his person, and thoroughly appreciated both his character and his genius. Nevertheless, the enemies he had in Rome now made a strong effort to dislodge Buonarroti from his official position at S. Peter's. It was probably about this time that the Superintendents of the Fabric drew up a memorial expressive of their grievances against him. We possess a document in Latin setting forth a statement of accounts in rough. "From the year 1540, when expenditures began to be made regularly and in order, from the very commencement as it were, up to the year 1547, when Michelangelo, at his own will and pleasure, undertook partly to build and partly to destroy, 162,624 ducats were expended. Since the latter date on to the present, during which time the deputies have served like the pipe at the organ, knowing nothing, nor what, nor how moneys were spent, but only at the orders of the said Michelangelo, such being the will of Paul III. of blessed memory, and also of the reigning Pontiff, 136,881 ducats have been paid out, as can be seen from our books. With regard to the edifice, what it is going to be, the deputies can make no statement, all things being hidden from them, as though they were outsiders. They have only been able to protest at several times, and do now again protest, for the easement of their conscience, that they do not like the ways used by Michelangelo, especially in what he keeps on pulling down. The demolition has been, and to-day is so great, that all who witness it are moved to an extremity of pity. Nevertheless, if his Holiness be satisfied, we, his deputies, shall have no reason to complain." It is clear that Michelangelo was carrying on with a high hand at S. Peter's. Although the date of this document is uncertain, I think it may be taken in connection with a general meeting called by Julius III., the incidents of which are recorded by Vasari. Michelangelo must have demonstrated his integrity, for he came out of the affair victorious, and obtained from the Pope a brief confirming him in his office of architect-in-chief, with even fuller powers than had been granted by Paul III.

VIII

Vasari at this epoch becomes one of our most reliable authorities regarding the life of Michelangelo. He corresponded and conversed with him continuously, and enjoyed the master's confidence. We may therefore accept the following narrative as accurate: "It was some little while before the beginning of 1551, when Vasari, on his return from Florence to Rome, found that the sect of Sangallo were plotting against Michelangelo; they induced the Pope to hold a meeting in S. Peter's, where all the overseers and workmen connected with the building should attend, and his Holiness should be persuaded by false insinuations that Michelangelo had spoiled the fabric. He had already walled in the apse of the King where the three chapels are, and carried out the three upper windows. But it was not known what he meant to do with the vault. They then, misled by their shallow judgment, made Cardinal Salviati the elder, and Marcello Cervini, who was afterwards Pope, believe that S. Peter's would be badly lighted. When all were assembled, the Pope told Michelangelo that the deputies were of opinion the apse would have but little light. He answered: 'I should like to hear these deputies speak.' The Cardinal Marcello rejoined: 'Here we are.' Michelangelo then remarked: 'My lord, above these three windows there will be other three in the vault, which is to be built of travertine.' 'You never told us anything about this,' said the Cardinal. Michelangelo responded: 'I am not, nor do I mean to be obliged to tell your lordship or anybody what I ought or wish to do. It is your business to provide money, and to see that it is not stolen. As regards the plans of the building, you have to leave those to me.' Then he turned to the Pope and said: 'Holy Father, behold what gains are mine! Unless the hardships I endure prove beneficial to my soul, I am losing time and labour.' The Pope, who loved him, laid his hands upon his shoulders and exclaimed: 'You are gaining both for soul and body, have no fear!' Michelangelo's spirited self-defence increased the Pope's love, and he ordered him to repair next day with Vasari to the Vigna Giulia, where they held long discourses upon art." It is here that Vasari relates how Julius III. was in the habit of seating Michelangelo by his side while they talked together.

Julius then maintained the cause of Michelangelo against the deputies. It was during his pontificate that a piece of engineering work committed to Buonarroti's charge by Paul III. fell into the hands of Nanni di Baccio Bigio. The old bridge of Santa Maria had long shown signs of giving way, and materials had been collected for rebuilding it. Nanni's friends managed to transfer the execution of this work to him from Michelangelo. The man laid bad foundations, and Buonarroti riding over the new bridge one day with Vasari, cried out: "George, the bridge is quivering beneath us; let us spur on, before it gives way with us upon it." Eventually, the bridge did fall to pieces, at the time of a great inundation. Its ruins have long been known as the Ponte Rotto.

On the death of Julius III. in 1555, Cardinal Cervini was made Pope, with the title of Marcellus II. This event revived the hopes of the sect, who once more began to machinate against Michelangelo. The Duke of Tuscany at this time was exceedingly anxious that he should take up his final abode at Florence; and Buonarroti, feeling he had now no strong support in Rome, seems to have entertained these proposals with alacrity. The death of Marcellus after a few weeks, and the election of Paul IV., who besought the great architect not to desert S. Peter's, made him change his mind. Several letters written to Vasari and the Grand Duke in this and the next two years show that his heart was set on finishing S. Peter's, however much he wished to please his friends and longed to end his days in peace at home. "I was set to work upon S. Peter's against my will, and I have served now eight years gratis, and with the utmost injury and discomfort to myself. Now that the fabric has been pushed forward and there is money to spend, and I am just upon the point of vaulting in the cupola, my departure from Rome would be the ruin of the edifice, and for me a great disgrace throughout all Christendom, and to my soul a grievous sin. Pray ask his lordship to give me leave of absence till S. Peter's has reached a point at which it cannot be altered in its main features. Should I leave Rome earlier, I should be the cause of a great ruin, a great disgrace, and a great sin." To the Duke he writes in 1557 that his special reasons for not wishing to abandon S. Peter's were, first, that the work would fall into the hands of thieves and rogues; secondly, that it might probably be suspended altogether; thirdly, that he owned property in Rome to the amount of several thousand crowns, which, if he left without permission, would be lost; fourthly, that he was suffering from several ailments. He also observed that the work had just reached its most critical stage (i.e., the erection of the cupola), and that to desert it at the present moment would be a great disgrace.

The vaulting of the cupola had now indeed become the main preoccupation of Michelangelo's life. Early in 1557 a serious illness threatened his health, and several friends, including the Cardinal of Carpi, Donato Giannotti, Tommaso Cavalieri, Francesco Bandini, and Lottino, persuaded him that he ought to construct a large model, so that the execution of this most important feature of the edifice might not be impeded in the event of his death. It appears certain that up to this date no models of his on anything like a large intelligible scale had been provided for S. Peter's; and the only extant model attributable to Michelangelo's own period is that of the cupola. This may help to account for the fact that, while the cupola was finished much as he intended, the rest of his scheme suffered a thorough and injurious remodelling.

He wrote to his nephew Lionardo on the 13th of February 1557 about the impossibility of meeting the Grand Duke's wishes and leaving Rome. "I told his Lordship that I was obliged to attend to S. Peter's until I could leave the work there at such a point that my plans would not be subsequently altered. This point has not been reached; and in addition, I am now obliged to construct a large wooden model for the cupola and lantern, in order that I may secure its being finished as it was meant to be. The whole of Rome, and especially the Cardinal of Carpi, puts great pressure on me to do this. Accordingly, I reckon that I shall have to remain here not less than a year; and so much time I beg the Duke to allow me for the love of Christ and S. Peter, so that I may not come home to Florence with a pricking conscience, but a mind easy about Rome." The model took about a year to make. It was executed by a French master named Jean.

All this while Michelangelo's enemies, headed by Nanni di Baccio Bigio, continued to calumniate and backbite. In the end they poisoned the mind of his old friend the Cardinal of Carpi. We gather this from a haughty letter written on the 13th of February 1560: "Messer Francesco Bandini informed me yesterday that your most illustrious and reverend lordship told him that the building of S. Peter's could not possibly go on worse than it is doing. This has grieved me deeply, partly because you have not been informed of the truth, and also because I, as my duty is, desire more than all men living that it should proceed well. Unless I am much deceived, I think I can assure you that it could not possibly go on better than it now is doing. It may, however, happen that my own interests and old age expose me to self-deception, and consequently expose the fabric of S. Peter's to harm or injury against my will. I therefore intend to ask permission on the first occasion from his Holiness to resign my office. Or rather, to save time, I wish to request your most illustrious and reverend lordship by these present to relieve me of the annoyance to which I have been subject seventeen years, at the orders of the Popes, working without remuneration. It is easy enough to see what has been accomplished by my industry during this period. I conclude by repeating my request that you will accept my resignation. You could not confer on me a more distinguished favour."

Giovanni Angelo Medici, of an obscure Milanese family, had succeeded to Paul IV. in 1559. Pius IV. felt a true admiration for Michelangelo. He confirmed the aged artist in his office by a brief which granted him the fullest authority in life, and strictly forbade any departure from his designs for S. Peter's after death. Notwithstanding this powerful support, Nanni di Baccio Bigio kept trying to eject him from his post. He wrote to the Grand Duke in 1562, arguing that Buonarroti was in his dotage, and begging Cosimo to use his influence to obtain the place for himself. In reply the Grand Duke told Nanni that he could not think of doing such a thing during Michelangelo's lifetime, but that after his death he would render what aid was in his power. An incident happened in 1563 which enabled Nanni to give his enemy some real annoyance. Michelangelo was now so old that he felt obliged to leave the personal superintendence of the operations at S. Peter's to a clerk of the works. The man employed at this time was a certain Cesare da Castel Durante, who was murdered in August under the following circumstances, communicated by Tiberio Calcagni to Lionardo Buonarroti on the 14th of that month: "I have only further to speak about the death of Cesare, clerk of the works, who was found by the cook of the Bishop of Forli with his wife. The man gave Cesare thirteen stabs with his poignard, and four to his wife. The old man (i.e., Michelangelo) is in much distress, seeing that he wished to give the post to that Pier Luigi, and has been unable to do so owing to the refusal of the deputies." This Pier Luigi, surnamed Gaeta, had been working since November 1561 as subordinate to Cesare; and we have a letter from Michelangelo to the deputies recommending him very warmly in that capacity. He was also the house-servant and personal attendant of the old master, running errands for him and transacting ordinary business, like Pietro Urbano and Stefano in former years. The deputies would not consent to nominate Pier Luigi as clerk of the works. They judged him to be too young, and were, moreover, persuaded that Michelangelo's men injured the work at S. Peter's. Accordingly they appointed Nanni di Baccio Bigio, and sent in a report, inspired by him, which severely blamed Buonarroti. Pius IV., after the receipt of this report, had an interview with Michelangelo, which ended in his sending his own relative, Gabrio Serbelloni, to inspect the works at S. Peter's. It was decided that Nanni had been calumniating the great old man. Accordingly he was dismissed with indignity. Immediately after the death of Michelangelo, however, Nanni renewed his applications to the Grand Duke. He claimed nothing less than the post of architect-in-chief. His petition was sent to Florence under cover of a despatch from the Duke's envoy, Averardo Serristori. The ambassador related the events of Michelangelo's death, and supported Nanni as "a worthy man, your vassal and true servant."

IX

Down to the last days of his life, Michelangelo was thus worried with the jealousies excited by his superintendence of the building at S. Peter's; and when he passed to the majority, he had not secured his heart's desire, to wit, that the fabric should be forced to retain the form he had designed for it. This was his own fault. Popes might issue briefs to the effect that his plans should be followed; but when it was discovered that, during his lifetime, he kept the builders in ignorance of his intentions, and that he left no working models fit for use, except in the case of the cupola, a free course was opened for every kind of innovation. So it came to pass that subsequent architects changed the essential features of his design by adding what might be called a nave, or, in other words, by substituting the Latin for the Greek cross in the ground-plan. He intended to front the mass of the edifice with a majestic colonnade, giving externally to one limb of the Greek cross a rectangular salience corresponding to its three semicircular apses. From this decastyle colonnade projected a tetrastyle portico, which introduced the people ascending from a flight of steps to a gigantic portal. The portal opened on the church, and all the glory of the dome was visible when they approached the sanctuary. Externally, according to his conception, the cupola dominated and crowned the edifice when viewed from a moderate or a greater distance. The cupola was the integral and vital feature of the structure. By producing one limb of the cross into a nave, destroying the colonnade and portico, and erecting a huge façade of _barocco_ design, his followers threw the interior effect of the cupola into a subordinate position, and externally crushed it out of view, except at a great distance. In like manner they dealt with every particular of his plan. As an old writer has remarked: "The cross which Michelangelo made Greek is now Latin; and if it be thus with the essential form, judge ye of the details!" It was not exactly their fault, but rather that of the master, who chose to work by drawings and small clay models, from which no accurate conception of his thought could be derived by lesser craftsmen.

We cannot, therefore, regard S. Peter's in its present state as the creation of Buonarroti's genius. As a building, it is open to criticism at every point. In spite of its richness and overwhelming size, no architect of merit gives it approbation. It is vast without being really great, magnificent without touching the heart, proudly but not harmoniously ordered. The one redeeming feature in the structure is the cupola; and that is the one thing which Michelangelo bequeathed to the intelligence of his successors. The curve which it describes finds no phrase of language to express its grace. It is neither ellipse nor parabola nor section of the circle, but an inspiration of creative fancy. It outsoars in vital force, in elegance of form, the dome of the Pantheon and the dome of Brunelleschi, upon which it was actually modelled. As a French architect, adverse to Michelangelo, has remarked: "This portion is simple, noble, grand. It is an unparalleled idea, and the author of this marvellous cupola had the right to be proud of the thought which controlled his pencil when he traced it." An English critic, no less adverse to the Italian style, is forced to admit that architecture "has seldom produced a more magnificent object" than the cupola, "if its bad connection with the building is overlooked." He also adds that, internally, "the sublime concave" of this immense dome is the one redeeming feature of S. Peter's.

Michelangelo's reputation, not only as an imaginative builder, but also as a practical engineer in architecture, depends in a very large measure upon the cupola of S. Peter's. It is, therefore, of great importance to ascertain exactly how far the dome in its present form belongs to his conception. Fortunately for his reputation, we still possess the wooden model constructed under his inspection by a man called Giovanni Franzese. It shows that subsequent architects, especially Giacomo della Porta, upon whom the task fell of raising the vaults and lantern from the point where Michelangelo left the building, that is, from the summit of the drum, departed in no essential particular from his design. Della Porta omitted one feature, however, of Michelangelo's plan, which would have added greatly to the dignity and elegance of the exterior. The model shows that the entablature of the drum broke into projections above each of the buttresses. Upon these projections or consoles Buonarroti intended to place statues of saints. He also connected their pedestals with the spring of the vault by a series of inverted curves sweeping upwards along the height of the shallow attic. The omission of these details not only weakened the support given to the arches of the dome, but it also lent a stilted effect to the cupola by abruptly separating the perpendicular lines of the drum and attic from the segment of the vaulting. This is an error which could even now be repaired, if any enterprising Pope undertook to complete the plan of the model. It may, indeed, be questioned whether the omission was not due to the difficulty of getting so many colossal statues adequately finished at a period when the fabric still remained imperfect in more essential parts.

Vasari, who lived in close intimacy with Michelangelo, and undoubtedly was familiar with the model, gives a confused but very minute description of the building. It is clear from this that the dome was designed with two shells, both of which were to be made of carefully selected bricks, the space between them being applied to the purpose of an interior staircase. The dormer windows in the outer sheath not only broke the surface of the vault, but also served to light this passage to the lantern. Vasari's description squares with the model, now preserved in a chamber of the Vatican basilica, and also with the present fabric.

It would not have been necessary to dwell at greater length upon the vaulting here but for difficulties which still surround the criticism of this salient feature of S. Peter's. Gotti published two plans of the cupola, which were made for him, he says, from accurate measurements of the model taken by Cavaliere Cesare Castelli, Lieut.-Col. of Engineers. The section drawing shows three shells instead of two, the innermost or lowest being flattened out like the vault of the Pantheon. Professor Josef Durm, in his essay upon the Domes of Florence and S. Peter's, gives a minute description of the model for the latter, and prints a carefully executed copperplate engraving of its section. It is clear from this work that at some time or other a third semi-spherical vault, corresponding to that of the Pantheon, had been contemplated. This would have been structurally of no value, and would have masked the two upper shells, which at present crown the edifice. The model shows that the dome itself was from the first intended to be composed of two solid vaults of masonry, in the space between which ran the staircase leading to the lantern. The lower and flatter shell, which appears also in the model, had no connection with the substantial portions of the edifice. It was an addition, perhaps an afterthought, designed possibly to serve as a ground for surface-decoration, or to provide an alternative scheme for the completion of the dome. Had Michelangelo really planned this innermost sheath, we could not credit him with the soaring sweep upwards of the mighty dome, its height and lightness, luminosity and space. The roof that met the eye internally would have been considerably lower and tamer, superfluous in the construction of the church, and bearing no right relation to the external curves of the vaulting. There would, moreover, have been a long dark funnel leading to the lantern. Heath Wilson would then have been justified in certain critical conclusions which may here be stated in his own words. "According to Michelangelo's idea, the cupola was formed of three vaults over each other. Apparently the inner one was intended to repeat the curves of the Pantheon, whilst the outer one was destined to give height and majesty to the building externally. The central vault, more pyramidal in form, was constructed to bear the weight of the lantern, and approached in form the dome of the Cathedral at Florence by Brunelleschi. Judging by the model, he meant the outer dome to be of wood, thus anticipating the construction of Sir Christopher Wren." Farther on, he adds that the architects who carried out the work "omitted entirely the inner lower vault, evidently to give height internally, and made the external cupola of brick as well as the internal; and, to prevent it expanding, had recourse to encircling chains of iron, which bind it at the weakest parts of the curve." These chains, it may be mentioned parenthetically, were strengthened by Poleni, after the lapse of some years, when the second of the two shells showed some signs of cracking.

From Dr. Durm's minute description of the cupola, there seems to be no doubt about the existence of this third vault in Michelangelo's wooden model. He says that the two outer shells are carved out of one piece of wood, while the third or innermost is made of another piece, which has been inserted. The sunk or hollow compartments, which form the laquear of this depressed vault, differ considerably in shape and arrangement from those which were adopted when it was finally rejected. The question now remains, whether the semi-spherical shell was abandoned during Michelangelo's lifetime and with his approval. There is good reason to believe that this may have been the case: first, because the tambour, which he executed, differs from the model in the arching of its windows; secondly, because Fontana and other early writers on the cupola insist strongly on the fact that Michelangelo's own plans were strictly followed, although they never allude to the third or innermost vault. It is almost incredible that if Della Porta departed in so vital a point from Michelangelo's design, no notice should have been taken of the fact. On the other hand, the tradition that Della Porta improved the curve of the cupola by making the spring upward from the attic more abrupt, is due probably to the discrepancy between the internal aspects of the model and the dome itself. The actual truth is that the cupola in its curve and its dimensions corresponds accurately to the proportions of the double outer vaulting of the model.

Taking, then, Vasari's statement in conjunction with the silence of Fontana, Poleni, and other early writers, and duly observing the care with which the proportions of the dome have been preserved, I think we may safely conclude that Michelangelo himself abandoned the third or semi-spherical vault, and that the cupola, as it exists, ought to be ascribed entirely to his conception. It is, in fact, the only portion of the basilica which remains as he designed it.