Alberti's own admirable writings on Architecture and the other Fine Arts moved all Italy, giving a thoroughly practical direction to the lessons somewhat obscurely inculated by Vitruvius; whose writings, without Alberti's comments, would have been of little practical use in countries in which ample remains of classical art were not at hand for reference and study.
The first French edition of the text of Vitruvius is of 1523; the first German is of 1543. The first French translation dates from 1547; the first German from 1548, published at Nuremburg. It was "volgarizzato" in Italy from 1521.
The Latin text was translated into Spanish by Miguel de Urrea and printed after his death at Alcala de Heñares in 1587. Its publication had however been long preceded in Spain by the digest of the views of Vitruvius under the tide of "las Medidas del Romano o Vitruvio," published by Diego de Sagredo in 1526. Sagredo had no doubt been stimulated to such studies, (as Alberti had previously been) by his admiration of the vestiges of Roman architectural greatness, still abounding on the soil of his native land.
What oral tradition could teach previous to the publication of these texts in Spain, no doubt the architect of the Cathedral of Granada, Diego de Siloe, had learnt from his father, Gil, the even more celebrated Sculptor of Burgos; whose monuments to Don Juan II., his Queen, Donna Isabel, and the Infante Don Alonso, and whose "Retablo" in the Cartuja of Miraflores in the outskirts of that city, have never been surpassed in tasteful elaboration.[46] From whatever source Diego de Siloe may have obtained his knowledge, certain it is that he must share with Alonso Covarrubbias, the honour of having been the earliest revivers of classical architecture in Spain: not in its details only as had been attempted by the early Plateresque architects, but in its structural proportions and in its symmetrical arrangements of great leading features. The following is the account of the construction of this Cathedral given by Amirola.[47]
"It was begun," he says, "on the 15th of March, 1529, and consists of three naves, the principal of which terminates in the choir after the Gothic manner. It is four hundred and twenty-five feet (Spanish) long, and two hundred and forty-nine wide. The order is Corinthian, but defective in its true proportions, since the principal nave is only forty-five feet wide, its height is one hundred and twenty." It would profit us but little to follow Amirola through his straight-laced criticisms on a design the beauty of which he was unable to apprehend; and it may be well to take a larger and juster view of its merits. The following which, I heartily endorse, is the verdict of a far better judge.[48] "Looking at its plan only, this is certainly one of the finest churches in Europe. It would be difficult to point out any other in which the central aisle leads up to the dome, so well proportioned to its dimensions, and to the dignity of the high altar which stands under it, or one where the side aisles have a purpose and a meaning so perfectly appropriate to the situation, and where the centre aisle has also its functions as perfectly marked out and so well understood. All this being so, it is puzzling to know how it has been so neglected."
My sketch has been taken from the "Ambulatory" at the back of, and surrounding, the choir. Its dimensions, as will be at once apparent, are enormous. The arches, which separate the choir from the ambulatory, and through one of which in my sketch the high altar is seen, are of very great interest. They form the earliest examples I have ever seen (out of Italy) of artificial perspectives, "guocchi di prospettiva." The arches next to the choir are narrower and lower than those next to the ambulatory; the distance between the two, owing to the necessities of supporting and distributing the weights of the vast cupola, being very considerable. The two archways are connected by falling lines of impost mouldings and converging lines of coffering. The consequence is that, as appears in the sketch, the archways, which really occupy only about five and twenty feet in depth, look at least double that dimension.