The execution of the sculptures varies considerably in quality, and must have required a large team as well as the three masters named in the inscription (see below). But the variation is within as well as between the groups and figures, and scholars accept that the whole ensemble was made as a single project. They are marked by an exceptionally extensive use of plain marble struts between sculpted elements, left to strengthen the figures; even the toes of Polyphemus are connected by them. This has been used to argue for off-site production, perhaps in
Rhodes, with the struts needed for protection during transport. Many elements are only finished to be viewed from particular angles, with their "back" left roughly worked. The initial discovery of the sculptures in 1957 was by civil engineers building the coastal road just above the site, and there was an interval of
disturbance to the site before it began to be excavated under proper archaeological direction, which has left the exact original location of some large fragments regrettably imprecise, allowing for prolonged arguments over which pieces belong to which group, and where the groups originally were, which have gradually been resolved as smaller pieces, recorded more professionally, are married up in the continuing process of reconstruction. In August 1957 Giulio Iacopi, an archaeologist at the
Museo Nazionale Romano finally got permission to lead excavations and used the opportunity to further explore. The four Odysseus groups show the different sides of his complex character, both good and bad: "all in all, the synthesis looks to be literary and Alexandrian, with its exaggeration of the hero's chameleon-like personality and its emphasis, over and above what is in Homer, upon the two extremes of his personality—his courage and his perfidy".
Pasquino group "
Pasquino group" is the name given to a sculptural group in Hellenistic style depicting a warrior supporting the dead body of a comrade, from the fragmentary but well known sculpture nicknamed the
Pasquino still erected on a street in Rome. Though it shows some differences to other versions, the Sperlonga group are sufficiently close to be regarded as adaptations of the same original if, as most assume, Sperlonga is not the
prime version of the composition, though it is the earliest to survive. Usually, as with the
Pasquino, the subject is taken to be
Menelaus supporting the body of Patroclus, which has been suggested as the subject here, but most scholars agree it is here intended to show Odysseus carrying the body of the dead Achilles off the battlefield outside Troy (or possibly
Ajax doing the carrying). This is an unusual subject, not in Homer, but one that is mentioned by
Ovid (
Metamorposes, 13, 282 ff) and fits the rest of the programme. Here Odysseus is shown at his most conventionally virtuous, demonstrating
pietas. The four legs, two trailing on the ground, and the head of the living warrior are the main elements reconstructed so far.
Palladium group This group also shows an unusual subject. It is mostly thought to represent the moment when, escaping after stealing the Palladium image which protected Troy, Odysseus tries to kill his comrade Diomedes in order to take all the credit himself. Diomedes senses Odysseus' drawn sword behind him, and stalls the attempt. This episode, also not in Homer, shows Odysseus at his least creditable, exhibiting
dolus. In
Metamorphoses 13, 337ff Odysseus boasts of his capture of the Palladium, just as some lines earlier he claims the credit for rescuing the body of Achilles. Some believe that the head and side of the torso of Odysseus in a
Phrygian cap with his nose missing (illustrated) belongs here rather than with the Polyphemus group, as it is placed in the group reconstruction. The style of the face of the Palladium figure has been said to represent "a late stage in the transformation of Ionian Hellenistic fleshiness into Julio-Claudian classicism" with archaizing elements found in other Julio-Claudian sculpture.
Polyphemus group As recounted by Homer, the cyclops Polyphemus, who has trapped Odysseus and his crew in his cave home with a huge stone and begun to eat them, has been made drunk and fallen asleep. Odysseus cannot kill him as he would not be able to move the stone, so he heats the tip of a stake of olive wood in the cave in the fire and with that blinds the giant's only eye. The next day he and his men escape by clinging underneath Polyphemus' sheep as he lets them out to graze, feeling only their backs. The moment shown is when the heated stake is being raised into position, and at right one of the companions carrying the wine-skin creeps away trying not to wake the giant; this is perhaps the most complete of the original figures. This was a more frequent subject in art, and with the Ganymede group is the only part of the whole for which no alternative subject has been suggested. It shows the famous and admired ruthless
calliditas or cunning of Odysseus, together with his bravery. Of the three men wielding the shaft, in the cast reconstruction in the museum he is nearest the giant's eye, although this figure is placed by some scholars in the Palladium group instead. The placing of the wineskin-bearer, and whether he was an addition to the putative bronze model for the ensemble, have been much discussed. A 3rd century sarcophagus relief at
Catania (illustrated below, including wineskin-bearer), is regarded as a simplified version of the Sperlonga Polyphemus group or its model, and was important as a basis for the reconstruction at Sperlonga. The wineskin-bearer and the lowest companion on the shaft are two of the most complete figures to survive, while of Polyphemus only his head, one huge leg and one foot, one arm and the other hand have so far been pieced together; his reconstructed torso is largely guesswork. This group was the furthest away, at some 40 metres, from the
triclinium, at the rear of the grotto to the right, but the visitor could pass in front of it and also mount some steps to the right to obtain much closer views. Unlike the Polyphemus group, no overall reconstruction using casts and creative re-imagining is on display. The whole group was some 3 metres high, and the human figures are generally counted as five sailors and a pilot. There is no fully comparable image, though fragments of what was probably a smaller group have been found in Hadrian's Villa at Tivoli (one illustrated below), in rather better condition. What evidence there is suggests that any earlier groups lacked the ship, and were less ambitious. A lost bronze group of uncertain date or appearance is later recorded in
Constantinople, which has been suggested as a model, though there are problems with this idea. There are numerous scenes with the same basic components in much smaller objects, including coins. Ganymede was a Trojan prince, in most versions of his myth the great-uncle of King
Priam (sometimes the uncle or even brother), but this national aspect is rarely stressed in his story, and this "is the only known depiction of Ganymede as distinctively Trojan". ==Sculptors==