The changes in the models of earlier sculptors made by Lysippos were of sufficient importance to give rise to a school which was carried on by his sons and others, producing among many famous works the Barberini Faun, now at the Glyptothek, Munich. The enormous Colossus of Rhodes was also the work of a disciple of Lysippos.
But from this time the downward tendency in Greek art is only too apparent, and very rapid. The spread of Greek influence over Asia, and later, in consequence of the conquest of Greece by Rome, over Europe, had the effect of widening the market for Greek production, but of drying up the sources of what was vital in that production. Athens and Sikyou became mere provincial cities, and were shorn thenceforth of all artistic significance; and Greek art, thus deprived of the roots of its life, continued to grow for a while with a rank luxuriance of production, but soon became normal and conventional. The artists who followed Lysippos contented themselves chiefly with seeking a merely technical perfection in reproducing the creations of the earlier and more original age.
At Pergamon under Attalus, in the last years of the third century, there was something of an artistic revival. This Attalus successfully defended his country against an overwhelming attack of the Gauls from the north. To celebrate this victory, an altar was erected to Zeus on the Acropolis of Pergamon, of which the frieze represented the contest between Zeus and the giants. These sculptures are now to be found in Berlin. They are carved in high relief; the giants with muscles strained and distended, their bodies writhing in the contortions of effort and suffering; the gods, no longer calm and restrained, but themselves overcome with the ardor of battle. Zeus stretches his arms over the battle-field hurling destruction everywhere. Athene turns from the field, dragging at her heels a young giant whom she has conquered, and reaches forward to the crown of victory. The wild, passionate action of the whole work remove it far from the firm, orderly work of Pheidias, and carry it almost to the extreme of pathetic representation in sculpture shown by the Laocoon.
The contests with the Gauls, the fear inspired by the huge forms of the barbarians, seem to have influenced powerfully the imaginative conceptions of the sculptors of the school of Pergamon. One of the most famous works which they have left is the figure long known as the Dying Gladiator, of which a copy exists in the Capitoline Museum. This represents a Gaul sinking wounded to the ground, supporting himself on his right arm. It is remarkable for its stern realism. The pain and sense of defeat comes out in every feature. Moreover, the nationality of the fallen warrior is clearly expressed in the deep indentation between the heavy brow and the prominent nose, in the face, shaven, except the upper lip, in the uncouth, fleshy body, in the rough hands and feet. Usually the artist preferred to hint at the race by some peculiarities of costume. Here nothing but uncompromising realism of feature will satisfy the sculptor. A companion piece to the Wounded Gaul, though less famous, is the group of the Villa Ludovisi, which represents a Gaul, who has slain his wife, in the act of stabbing himself in the neck.
In addition to inspiring the sculptures at Pergamon, Attalus dedicated to the gods of Athens a votive offering in return for the help which they had given him. This was placed on the Acropolis at Athens. It consisted of four groups, representing the gigantomachia or giant combat, the battle of the Amazons, the battle of Marathon, and the victory of Attalus. Figures from these survive, a dead Amazon at Naples and a kneeling Persian at the Vatican being the best known.
Another state which became famous in the declining days of Greek art was the republic of Rhodes. The Rhodian sculptors learned their anatomy from Lysippos, and caught their dramatic instinct from the artists of Pergamon. Two of the most famous sculpture groups in the world were produced at Rhodes, the Laocoon, now at the Vatican, and the Farnese Bull, now at Naples. The former was the work of three artists, given by Pliny as Agesandros, Athanodorus, and Polydorus. It has been accepted as one of the masterpieces of the world, but as we shall see, it is manifestly a work of a time of decadence.
The Laocoon illustrates excellently the extreme results of the pathetic tendency. The priest Laocoon is represented at the moment when the serpents of Apollo surround him and his two sons, born through their father's sin, and bear them all three down to destruction. The younger son, fatally bitten, falls back in death agony. The father yields slowly, his desperation giving way before the merciless strength of the serpents. The elder son shrinks away in horror though bound fast by the inevitable coils.
The Laocoon shows the pathetic tendency at its utmost. The technical difficulties have been overcome with astonishing success, and though the combination of figures is impossible in life, it is marvellously effective in art. But the group depends for its interest purely on the accidental horror of the situation. There is no hint in the sculpture of the motive of the tragedy, no suggestion of ethical significance in the suffering portrayed. It does not connect itself with any principle of life. In this way the work became a superb piece of display, a TOUR DE FORCE of surprising composition but with little serious meaning.
The same judgment may be extended to the Farnese Bull, the work of Apollonius and Tauriscos, artists from Tralles who lived at Rhodes. This group represents the punishment of the cruel Dirke at the hands of the sons of Antiope. The beautiful queen clasps the knee of one of the sons praying for grace, while the other boy is about to throw over her the noose which is to bind her to the bull. Antiope stands in the background, a mere lay figure, and scattered about are numerous small symbolical figures. Like the Laocoon the Farnese Bull exhibits surprising mastery of technical obstacles, but, like the Laocoon, it falls short of true tragic grandeur. In a greater degree than the Laocoon it trenches upon the province of painting. It is more complicated in its subject-matter; and the appearance in the group of many small subsidiary figures, which in a painting might have been given their proper value, being in the marble of the same relief and distinction as the major characters, give a somewhat absurd effect. The little goddess who sits in the foreground, for instance, is smaller than the dog. Again, there is less of the motive shown than in the Laocoon. The group is seized at the moment preceding the frightful catastrophe, but that moment is as full of agony as the succeeding ones, and in addition there is the feeling of suspense and oppression that comes from the unfinished tragedy. Altogether, the group, in spite of the marvellous technical skill shown in details, is a failure when judged on general lines. Its interest lies in momentary and apparently ummotived suffering, not in any truly serious conception of life.
With the conquest of Greece by Rome, the final stage of Greek art begins. But the vigor and originality had departed. The sculptors aimed at and attained technical correctness, academic beauty of form, sensuous feeling, perfection of details, but they lost all imaginative power. A good example of the work of this period is found in the Apollo Belvidere now in the Vatican. This famous statue is an early Roman copy of a Greek original. It represents the god advancing easily, full of vigor and grace. It is marvellously correct in drawing, but quite without feeling of any kind.