How France Built Her Cathedrals: A Study in the Twelfth and Thirteenth Centuries. Elizabeth Boyle O'Reilly

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СКАЧАТЬ and wholesale conflagrations had impressed on the mediæval mind the necessity of a church roof more durable than wood, but a masonry vault over a wide space was a constructive feat too difficult to be achieved immediately. In fact, up to the very end of the XI century, though the builders had succeeded in vaulting with stone the crypt, the apse, and the side aisles, they continued generally to cover the wide central vessel in wood. However, the fecund idea was at work. From the time that it took possession of their imagination, to the day when Gothic, its fulfillment, was clearly enunciated, there was over a century of continuous effort—roughly speaking, from the year 1000 to the memorable day in 1144 when was dedicated the first truly Gothic monument of considerable size—the abbey church of St. Denis. Within that energetic span of years is embraced the Romanesque architecture of France.[9]

      The monk, Raoul Glaber, wrote an account of the rebirth of architecture after the year 1000. It has been quoted to weariness, but is none the less a valuable contemporary record. The whole earth, he says, as of one accord seemed to throw off its tatters of old age and to reclothe itself in a white mantle of churches. The monastery in which lived monk Raoul, St. Bénigne, at Dijon, was one of the first to inaugurate the new century, and its present crypt dates from the year 1001. Soon after 1017 the monks of Mont-Saint-Michel, in the far corner of Normandy, began a new church, to which belonged part of the present nave. At Chartres, Bishop Fulbert undertook to rebuild his cathedral after the fire of 1020, and the vast crypt which to-day astonishes every beholder was his work.

      The chronicler, Raoul Glaber, lived under the rule of the most powerful monastic brotherhood ever organized, Benedictine Cluny, embracing several thousand houses scattered over Europe. Founded in 910, during the darkest years of the Middle Ages, Cluny kept alive the light of learning and art, “the solitary torchbearer that passed on the flame from the spent glow of Charlemagne to the Gothic rekindling.” Her monks were the pioneers of civilization. Cluny beat back barbarism with a pertinacity that should make hers an honored name in history. So established was her reputation as a civilizer that William the Conqueror wrote to the great Abbot Hugues, to beg from him Cluny monks for England, saying that he would pay their weight in bullion.

      Cluny formed the savants who made the XII century memorable. Her fertile seed provided Europe with doctors, ambassadors, bishops, and popes. Gregory VII had passed through her discipline, and in his giant task of reform, it was from Abbot Hugues that he solicited monks of Cluny. Urban II, who set in motion the First Crusade, had been a monk in the great Burgundian house. It is interesting to note that a generation of reforming pontiffs accompanied the expansion of the Romanesque movement. This would seem to contradict the notion, which many hold, that the clergy profits by keeping the people in superstitious ignorance. It is when religion is purified of its dross that man’s respiritualized faith out-flows in generous donations to the Church.

      St. Benedict had taught his sons that work as well as prayer was a part of salvation. The monks of Cluny fostered agriculture, thus taking away its stigma as serf’s work. Thierry speaks of the mediæval monastery as a model farm. In Cluny craftsmen of every kind were trained; its school of music was noted, and along the roads, as they traveled, the monks from Burgundy sang canticles. But the art of arts for Cluny was that of the builder, the supreme art that takes into its service all the others, to lead them to the glorification of God’s house. When, in bands of twelve, the monks of Cluny set out to colonize in Spain, in Germany, in Italy, in Poland, everywhere they carried with them the tool as well as the Book. As a rule they conformed in each province to the local building traditions. There was never a distinct Cluny school of Romanesque architecture.

      By the end of the XI century the main provincial centers of France had each evolved its own special building characteristics. French Romanesque architecture has been divided into some six or seven regional schools—those of Normandy, Burgundy, Auvergne, Poitou, Languedoc, Provence, and a minor school, the Franco-Picard.[10]

      In their efforts to protect their churches by masonry roofs, these various regional schools made use of the barrel vault or the groin vault. The latter was found too insecure to span a wide space. Now, the thrust of a barrel vault was exerted along the whole length of the wall, which necessitated a continuous abutment—in other words, an enormously thick wall. Only small windows could be opened. Since the Romanesque architect had the ambition to light his church well, and not to encumber his floor surface by clumsy piers, a barrel vaulting could be but a temporary solution of the main problem.

      The struggle for a satisfactory stone roof was pursued tenaciously. Many a clearstory wall was thrust apart by the vaulting’s pressure. Thus the abbey church of Bec, finished in the ’forties of the XI century, was reconstructed in the ’fifties, and three times, again, had to be rebuilt. No failure could daunt the courage of those old monastic builders. Already inherent in the newly amalgamated race was the creative genius of France. Perseverance and courage were to have their reward.

      The theory long taught in the École des Chartes was that in the first part of the XI century, among a number of rural churches in the royal domain, there gradually came into use the member which was to revolutionize the science of building. The idea did not spring from one brain; it was a collective, not an individual, triumph. When, under some groin vault, no doubt at first to reinforce it, some obscure mason constructed the earliest intersecting stone ribs, the first step in Gothic architecture had been taken.[11]

      From that essential organ, the other characteristics of Gothic art were deduced: flying buttress, slender piers, expanse of windows. In a Gothic vault the infilling, or web, rested elastically on the diagonal ribs. As the load of the stone roof was thus concentrated at fixed junctures, it was necessary to reinforce only those given points. Buttresses became intermittent. All the disintegrating force of the heavy vaulting was gathered on the diagonally crossing arches. An arch never sleeps, said the old Arab proverb. Let us then, said the mediæval architect, set a guard on it that also never sleeps; and from that idea he proceeded to develop the greatest architecture of all times. The force of expansion was counteracted by a proportionate force of compression. By means of a framework made up of vault ribs, of piers, of buttresses, and flying buttresses, the edifice became a living skeleton. The walls between the active members, when relieved of their load, served merely as screen inclosures and could be carved into fragile beauty and hung with transparent tapestries of colored glass. Because the flying buttress transmitted a large part of the vault’s pressure to the exterior buttress piles, the piers within the church could be lessened in diameter, and greater capacity be given to the interior.

      Each new trial was a lesson learned. It was only with time that they adjusted precisely the sufficient counterpoise to the thrust of the vaults; it was only by degrees that the pier’s diameter was lessened, only with practice that was learned the placing of flying buttresses neither too high nor too low. At first many a flying buttress was made needlessly heavy. The solid wall in between the buttresses was not discarded all at once. In the first Gothic churches windows continued to be single lights, then two or three lancets were placed side by side, subsequently each light was subdivided by mullions, and gradually an elaborate fenestration developed. For a time, too, the round arch continued in use, and the earliest vault ribs were semicircular. With the fusion of the equilateral arch and the counterbutted intersecting ribs, the essence of Gothic architecture was achieved.

      Lesser consequences of the new form of vaulting followed in logical succession. Obeying the law that it is the thing borne which commands the form of the thing that bears, the ribs may be said to have drawn out of the sturdy pier of Romanesque art the clustered columns of Gothic gracefulness.

      Not a single beauty in a Gothic church but has a structural explanation. The soaring pinnacles that crown the buttresses are apparently mere ornaments, but in reality those gallant little bits of decoration are of sound engineering usefulness. By weighting the buttresses, they hasten to channel the transmitted lateral thrust of the vaulting into a vertical pressure, and they increase, too, the counterthrust of the flying buttress against the side walls.

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