The works have been attributed to Rhodian sculptors Agesander, Athenedoros and Polydoros, and are thought to be the same authors of the group of "Laocoön and His Sons" (as attributed by Pliny the Elder). Yet whether the very same artists are responsible is questionable. Some scholars believe them to be related, but not the same people; apart from Athenedoros (II) who was the last to be credited as an artist on the Laocoon group, but first to be credited with the Scylla series – suggesting that he was the youngest during the creation of the Laocoon group, but eldest artist who worked on the Scylla group.