Having now briefly glanced at the leading characteristics of these artists, it will be well to examine the work of one who was far greater than either of those already named, and whose influence on Perugino is very marked. I allude to Piero della Francesca. Whether, as Morelli suggests, Perugino journeyed to Arezzo, where Piero was at work, and aided him in his work, or placed himself under his tuition, or whether Perugino met Piero at Borgo San Sepolcro or in Perugia, is immaterial. It will suffice to understand that, somewhere near at home, and in the early days of his training before Perugino journeyed to Florence, the two men must have met, and Perugino learned much from the Tuscan-Umbrian master and profited largely by his instruction.
One of the main features of Piero's art was his accurate knowledge of perspective. He was, above all, a mathematician, well versed in arithmetic and geometry, and the author of several treatises on the science.
He rejoiced in complicated problems of perspective, in long vistas of columns stretching away into the far distance, in mysterious hollows, in exquisite alcoves, curves, and embrasures, in the perfectly accurate drawing of roofs and rooms, and in the grouping of his figures in such geometric array and such careful receding proportion as made clear the charm that such mathematical arrangements had over the mind of the artist.
There are, however, other characteristics of Piero's work, that must be carefully noted in making a survey of his style. There is a wonderful gravity and solemnity about his figures, a preoccupied look in most of their faces, and we trace also the very beginning of that power already mentioned, of linking figure to figure and group to group.
Certainly, in the long processions that form so essential a part of the frescoes at San Francesco in Arezzo, there is a certain connection running through the group of figures which are arranged in processional order especially in the "Visit of the Queen of Sheba," the "Invention of the Cross," and the "Exaltation of the Cross," but individually the figures composing these groups are separate and distinct from one another, engaged in their own concerns and holding no converse one with the other. In these respects it was left for the later men, beginning with Perugino, to pull the picture together and make it one harmonious whole.
When to this aloofness, this curious want of sympathy between the central group or scene in the picture and all the attendant groups or figures, we add a severe absence of emotion, an impassiveness in the faces of all the figures, together with a simple dignity of style and a power of delineation that is very attractive, we begin to understand Piero della Francesca. He never considered whether the faces of his figures were specially suited to the group in which he used them. He is quite unmoved by any ideas that the spectator may have as to fitness in the picture, and he never reveals his own views as to the scene and its appropriate presentation. Rage, pity, scorn, amazement, jealousy, passion, or even the depth of devotion, are no part of Piero's repertoire, but a quiet self-contained hauteur, a learned solemnity, and a religious calm characterise his figures, both men and women. There is abundance of dignity, stately form, earnest but impassive determination, but, even in the battle scenes, nothing of the Sturm und Drang which would have been expected.
All these characteristics had direct influence upon Perugino, but even beyond them can be seen other marks of this master's tuition. The fantastic head-dresses that are to be seen in Piero's frescoes find their counterpart in the frescoes of the Cambio; the very same scheme of composition in "The Resurrection of Christ" in the Borgo San Sepolcro Gallery is to be seen in one of Perugino's pictures; and the long vistas of arches and careful geometric proportion and the absolutely accurate drawing of arches and columns are to be equally realised in Piero's picture in the Gallery at Perugia and in Perugino's altar-piece in the Villa Albani. Even in the shape of the hand, the clear cameo-like profile of the faces, and the detail of the feathers on the angels' wings, the relationship between these painters is marked, and comparison between the frescoes at Arezzo and the paintings in the Accademia will be found to reveal these and other points of close contact.
In these early days of Perugino's life, it is therefore to the influence of Niccolò Liberatore, of Fiorenzo di Lorenzo, and, above all, of Piero della Francesca, that we attribute the growth of his art and the success of his later life.
One more artist he must have met in these days, as Luca Signorelli, who was some five years his senior, was probably at Arezzo with Piero della Francesca. Certain pictures of Perugino, notably the "Crucifixion," at La Calza, and the similar scene painted around a carved crucifix now at Perugia, the "Pietà" in the Accademia, and the "Love and Chastity" in Paris, betray in their vigour, hardness, and movement some of Signorelli's influence, an influence that only occasionally was to be seen in the great Umbrian master.
Morelli[C] considers that Perugino's journey to Florence after his Perugian training, of which Vasari speaks, took place in 1470, at which time Perugino would be about twenty-five years old. His name is recorded in the roll of St. Luke in 1472, and in the roll of the Physicians in 1499.