Alcamenes

Alcamenes was an ancient Greek sculptor of Lemnos and Athens, who flourished in the 2nd half of the 5th century BC. He was a younger contemporary of Phidias and noted for the delicacy and finish of his works, among which a Hephaestus and an Aphrodite of the Gardens were conspicuous.
Pausanias says that he was the author of one of the pediments of the temple of Zeus at Olympia, but this seems a chronological and stylistic impossibility. Pausanias also refers to a statue of Ares by Alcamenes that was erected on the Athenian agora, which some have related to the Ares Borghese. However, the temple of Ares to which he refers had only been moved from Acharnes and re-sited in the Agora in Augustus's time, and statues known to derive from Alcamenes' statue show the god in a breastplate, so the identification of Alcamenes' Ares with the Ares Borghese is not secure.
At Pergamum there was discovered in 1903 a Hellenistic copy of the head of the Hermes "Propylaeus" of Alcamenes.