Laocoon Group In palace of Titus, Rome, in Roman times, baroque

Stewart, T171:
Pliny, Natural History 36.37-8
Furthermore, many have little fame, because despite the distinction of their work, the number of artists involved becomes a barrier to recognition, since no single man monopolizes the credit, nor can several of them be recognized on equal terms. Such is the case with the Laocoon in the palace of the emperor Titus, a work to be preferred to any other painting or sculpture. From one stone the eminent craftsmen Hagesander, Polydorus, and Athenodorus of Rhodes made him [Laocoon] and the extraordinary intertwining coils of the snakes, following a plan agreed in advance.

Summary of Arctinus' Destruction of Troy (composed in the 8th or 7th century B.C.):
The Trojans were suspicious of the wooden horse and standing round it debated what they ought to do. Some thought they ought to hurl it down from the rocks, others to burn it up, while others said they ought to dedicate it to Athena. At last the third opinion prevailed. Then they turned to mirth and feasting believing the war was at an end. But at this very time two serpents appeared and destroyed Laocoon and one of his two sons, a portent which so alarmed the followers of Aeneas that they withdrew to Ida.