Time would fail to tell of all the architects who crowd the first half of the sixteenth century—of Antonio di San Gallo, famous for fortifications; of Baccio d'Agnolo, who raised the Campanile of S. Spirito at Florence; of Giovanni Maria Falconetto, to whose genius Padua owed so many princely edifices; of Michele Sanmicheli, the military architect of Verona, and the builder of five mighty palaces for the nobles of his native city. Yet the greatest name of all this period cannot be omitted: Michael Angelo must be added to the list of builders in the golden age. In architecture, as in sculpture, he not only bequeathed to posterity masterpieces of individual energy and original invention, in their kind unrivalled; but he also prepared for his successors a false way of working, and justified by his example the extravagances of the decadence. Without noticing the façade designed for S. Lorenzo at Florence, the transformation of the Baths of Diocletian into a church, the remodelling of the Capitoline buildings, and the continuation of the Palazzo Farnese—works that either exist only in drawings or have been confused by later alterations—it is enough here to mention the Sagrestia Nuova of S. Lorenzo and the cupola of S. Peter's. The sacristy may be looked on either as the masterpiece of a sculptor who required fit setting for his statues, or of an architect who designed statues to enhance the structure he had planned. Both arts are used with equal ease, nor has the genius of Michael Angelo dealt more masterfully with the human frame than with the forms of Roman architecture in this chapel. He seems to have paid no heed to classic precedent, and to have taken no pains to adapt the parts to the structural purpose of the building. It was enough for him to create a wholly novel framework for the modern miracle of sculpture it enshrines, attending to such rules of composition as determine light and shade, and seeking by the slightness of mouldings and pilasters to enhance the terrible and massive forms that brood above the Medicean tombs. The result is a product of picturesque and plastic art, as true to the Michaelangelesque spirit as the Temple of the Wingless Victory to that of Pheidias. But where Michael Angelo achieved a triumph of boldness, lesser natures were betrayed into bizarrerie; and this chapel of the Medici, in spite of its grandiose simplicity, proved a stumbling-block to subsequent architects by encouraging them to despise propriety and violate the laws of structure. The same may be said with even greater truth of the Laurentian Library and its staircase. The false windows, repeated pillars, and barefaced aiming at effect, that mark the insincerity of the barocco style, are found here almost for the first time.
What S. Peter's would have been, if Michael Angelo had lived to finish it, can be imagined from his plans and elevations still preserved. It must always remain a matter of profound regret that his project was so far altered as to sacrifice the effect of the dome from the piazza. This dome is Michael Angelo's supreme achievement as an architect. It not only preserves all that is majestic in the cupola of Brunelleschi; but it also avoids the defects of its avowed model, by securing the entrance of abundant light, and dilating the imagination with the sense of space to soar and float in. It is the dome that makes S. Peter's what it is—the adequate symbol of the Church in an age that had abandoned mediævalism and produced a new type of civility for the modern nations. On the connection between the building of S. Peter's and the Reformation I have touched already.[[45]] This mighty temple is the shrine of Catholicity, no longer cosmopolitan by right of spiritual empire, but secularised and limited to Latin races. At the same time it represents the spirit of a period when the Popes still led the world as intellectual chiefs. As the decree for its erection was the last act of the Papacy before the schism of the North had driven it into blind conflict with advancing culture, so S. Peter's remains the monument to after ages of a moment when the Roman Church, unterrified as yet by German rebels, dared to share the mundane impulse of the classical revival. She had forgotten the catacombs and ruthlessly destroyed the Basilica of Constantine. By rebuilding the mother church of Western Christianity upon a new plan, she broke with tradition; and if Rome has not ceased to be the Eternal City, if all ways are still leading to Rome, we may even hazard a conjecture that in the last days of their universal monarchy the Popes reared this fane to be the temple of a spirit alien to their own. It is at any rate certain that S. Peter's produces an impression less ecclesiastical, and less strictly Christian, than almost any of the elder and far humbler churches of Europe. Raised by proud and secular pontiffs in the heyday of renascent humanism, it seems to wait the time when the high priests of a religion no longer hostile to science or antagonistic to the inevitable force of progress will chaunt their hymns beneath its spacious dome.
The building of S. Peter's was so momentous in modern history, and so decisive for Italian architecture, that it may be permitted me to describe the vicissitudes through which the structure passed before reaching completion. Nicholas V., founder of the secular papacy and chief patron of the humanistic movement in Rome, had approved a scheme for thoroughly rebuilding and refortifying the pontifical city.[[46]] Part of this plan involved the reconstruction of S. Peter's. The old basilica was to be removed, and on its site was to rise a mighty church, shaped like a Latin cross, with a central dome and two high towers flanking the vestibule. Nicholas died before his project could be carried into effect. Beyond destroying the old temple of Probus and marking out foundations for the tribune of the new church, nothing had been accomplished;[[47]] nor did his successors until the reign of Julius think of continuing what he had begun. In 1506, on the 18th of April, Julius laid the first stone of S. Peter's according to the plans provided by Bramante. The basilica was designed in the shape of a Greek cross, surmounted by a colossal dome, and approached by a vestibule fronted with six columns. As in all the works of Bramante, simplicity and dignity distinguished this first scheme.[[48]] For eight years, until his death in 1514, Bramante laboured on the building. Julius, the most impatient of masters, urged him to work rapidly. In consequence of this haste, the substructures of the new church proved insecure, and the huge piers raised to support the cupola were imperfect, while the venerable monuments contained in the old church were ruthlessly destroyed.[[49]] After Bramante's death Giuliano di S. Gallo, Fra Giocondo, and Raphael successively superintended the construction, each for a short period. Raphael, under Leo X., was appointed sole architect, and went so far as to alter the design of Bramante by substituting the Latin for the Greek cross. Upon his death, Baldassare Peruzzi continued the work, and supplied a series of new designs, restoring the ground-plan of the church to its original shape. He was succeeded in the reign of Paul III. by Antonio di S. Gallo, who once more reverted to the Latin cross, and proposed a novel form of cupola with flanking towers for the façade, of bizarre rather than beautiful proportions. After a short interregnum, during which Giulio Romano superintended the building and did nothing remarkable, Michael Angelo was called in 1535 to undertake the sole charge of the edifice. He declared that wherever subsequent architects had departed from Bramante's project, they had erred. "It is impossible to deny that Bramante was as great in architecture as any man has been since the days of the ancients. When he first laid the plan of S. Peter's, he made it not a mass of confusion, but clear and simple, well lighted, and so thoroughly detached that it in no way interfered with any portion of the palace."[[50]] Having thus pronounced himself in general for Bramante's scheme, Michael Angelo proceeded to develop it in accordance with his own canons of taste. He retained the Greek cross; but the dome, as he conceived it, and the details designed for each section of the building, differed essentially from what the earlier master would have sanctioned. Not the placid and pure taste of Bramante, but the masterful and fiery genius of Buonarroti, is responsible for the colossal scale of the subordinate parts and variously broken lineaments of the existing church. In spite of all changes of direction, the fabric of S. Peter's had been steadily advancing. Michael Angelo was, therefore, able to raise the central structure as far as the drum of the cupola before his death. His plans and models were carefully preserved, and a special papal ordinance decreed that henceforth there should be no deviation from the scheme he had laid down. Unhappily this rule was not observed. Under Pius V., Vignola and Piero Ligorio did indeed continue his tradition; under Gregory XIII., Sixtus V., and Clement VIII., Giacomo della Porta made no substantial alterations; and in 1590 Domenico Fontana finished the dome. But during the pontificate of Paul V., Carlo Maderno resumed the form of the Latin cross, and completed the nave and vestibule, as they now stand, upon this altered plan (1614). The consequence is what has been already noted—at a moderate distance from the church the dome is lost to view; it only takes its true position of predominance when seen from far. In the year 1626, S. Peter's was consecrated by Urban VIII., and the mighty work was finished. It remained for Bernini to add the colonnades of the piazza, no less picturesque in their effect than admirably fitted for the pageantry of world-important ceremonial. At the end of the eighteenth century it was reckoned that the church had cost but little less than fifty million scudi.
Michael Angelo forms the link between the second and third periods of the Renaissance. Among the architects of the latter age we have to reckon those who based their practice upon minute study of antique writers, and who, more than any of their predecessors, realised the long-sought restitution of the classic style according to precise scholastic canons.[[51]] A new age had now begun for Italy. The glory and the grace of the Renaissance, its blooming time of beauty, and its springtide of young strength, were over. Strangers held the reins of power, and the Reformation had begun to make itself felt in the Northern provinces of Christendom. A colder and more formal spirit everywhere prevailed. The sources of invention in the art of painting were dried up. Scholarship had pined away into pedantic purism. Correct taste was coming to be prized more highly than originality of genius in literature. Nor did architecture fail to manifest the operation of this change. The greatest builder of the period was Andrea Palladio of Vicenza, who combined a more complete analytical knowledge of antiquity with a firmer adherence to rule and precedent than even the most imitative of his forerunners. It is useless to seek for decorative fancy, wealth of detail, or sallies of inventive genius in the Palladian style. All is cold and calculated in the many palaces and churches of this master which adorn both Venice and Vicenza; they make us feel that creative inspiration has been superseded by the labour of the calculating reason. One great public building of Palladio's, however—the Palazzo della Ragione at Vicenza—may be cited as, perhaps, the culminating point of pure Renaissance architecture. In its simple and heroical arcades, its solid columns, and noble open spaces, the strength of Rome is realised to the eyes of those who do not penetrate too far inside the building.[[52]] Here, and here only, the architectural problem of the epoch—how to bring the art of the ancients back to life and use again—was solved according to the spirit and the letter of the past. Palladio never equalled this, the earliest of all his many works.
In the first half of the sixteenth century the dictatorship of art had been already transferred from Florence and Rome to Lombardy.[[53]] The painters who carried on the great traditions were Venetian. Among the architects, Palladio was a native of Vicenza; Giacomo Barozzi, the author of the "Treatise on the Orders," took the name by which he is known from his birthplace, Vignola; Vincenzo Scamozzi was a fellow-townsman of Palladio; Galeazzo Alessi, though born at Perugia, spent his life and developed his talents in Genoa; Andrea Formigine, the palace-builder, was a Bolognese; Bartolommeo Ammanati alone at Florence exercised the arts of sculpture and architecture in their old conjunction. Vignola, Palladio's elder by a few years, displays in his work even more of the scholastically frigid spirit of the late Renaissance, the narrowing of poetic impulse, and the dwindling of vitality, that sadden the second half of the sixteenth century in Italy. Scamozzi, labouring at Venice on works that Sansovino left unfinished, caught the genial spirit of the old Venetian style. Alessi, in like manner, at Genoa, felt the influences of a rich and splendour-loving aristocracy. His church of S. Maria di Carignano is one of the most successful ecclesiastical buildings of the late Renaissance, combining the principles of Bramante and Michael Angelo in close imitation of S. Peter's, and adhering in detail to the canons of the new taste.
These canons were based upon a close study of Vitruvius. Palladio, Vignola, and Scamozzi were no less ambitious as authors than as architects;[[54]] their minute analysis of antique treatises on the art of construction led to the formation of exact rules for the treatment of the five classic orders, the proportions of the chief parts used in building, and the correct method of designing theatres and palaces, church-fronts and cupolas. Thus architecture in its third Renaissance period passed into scholasticism.
The masters of this age, chiefly through the weight of their authority as writers, exercised a wider European influence than any of their predecessors. We English, for example, have given Palladio's name to the Italian style adopted by us in the seventeenth century. This selection of one man to represent an epoch was due partly no doubt to the prestige of Palladio's great buildings in the South, but more, I think, to the facility with which his principles could be assimilated. Depending but little for effect upon the arts of decoration, his style was easily imitated in countries where painting and sculpture were unknown, and where a genius like Jean Goujon, the Sansovino of the French, has never been developed. To have rivalled the façade of the Certosa would have been impossible in London. Yet here Wren produced a cathedral worthy of comparison with the proudest of the late Italian edifices. Moreover, the principles of taste that governed Europe in the seventeenth century were such as found fitter architectural expression in this style than in the more genial and capricious manner of the earlier periods.
After reviewing the rise and development of Renaissance architecture, it is almost irresistible to compare the process whereby the builders of this age learned to use dead forms for the expression of their thoughts, with the similar process by which the scholars accustomed themselves to Latin metres and the cadences of Ciceronian periods.[[55]] The object in each case was the same—to be as true to the antique as possible, and without actually sacrificing the independence of the modern mind, to impose upon it the limitations of a bygone civilisation. At first the enthusiasm for antiquity inspired architects and scholars alike with a desire to imitate per saltum, and many works of fervid sympathy and pure artistic intuition were produced. In course of time the laws both of language and construction were more accurately studied; invention was superseded by pedantry; after Poliziano and Alberti came Bembo and Palladio. In proportion as architects learned more about Vitruvius, and scholars narrowed their taste to Virgil, the style of both became more cramped and formal. It ceased at last to be possible to express modern ideas freely in the correct Latinity required by cultivated ears, while no room for originality, no scope for poetry of invention, remained in the elaborated method of the architects. Neo-Latin literature dwindled away to nothing, and Palladio was followed by the violent reactionaries of the barocco mannerism.