Pheidias in the context of "Acropolis, Athens"

The aegis (/ˈiːdʒɪs/ EE-jis; Ancient Greek: αἰγίς aigís), as stated in the Iliad, is a device carried by Athena and Zeus, variously interpreted as an animal skin or a shield and sometimes featuring the head of a Gorgon. There may be a connection with a deity named Aex, a daughter of Helios and a nurse of Zeus or alternatively a mistress of Zeus (Hyginus, Astronomica 2. 13).

The modern concept of doing something "under someone's aegis" means doing something under the protection of a powerful, knowledgeable, or benevolent source. The word aegis is identified with protection by a strong force with its roots in Greek mythology and adopted by the Romans; there are parallels in Norse mythology and in Egyptian mythology as well, where the Greek word aegis is applied by extension.

The Lemnian Athena, or Athena Lemnia, was a classical Greek statue of the goddess Athena that stood on the Acropolis of Athens. According to the traveler Pausanias, who visited Athens in the 2nd century CE, the statue was created by Pheidias, a sculptor of the 5th century BCE, and dedicated by the inhabitants of the island of Lemnos. In addition to Pausanias, two other authors of the Roman period, Lucian and Aelius Aristides, mention the statue by name, and it may also be alluded to by Pliny the Elder and the Late Roman rhetorician Himerius. The ancient sources suggest that the statue was greatly admired: Pausanias calls it "the most worth seeing" (θέας μάλιστα ἄξιον) of all of Pheidias's works, and in Lucian's dialogue the answer to the question "Which of Pheidias's works do you praise the most?" is "What other than the goddess of Lemnos?"

Since the 1890s the name "Athena Lemnia" has been associated with a specific ancient statue type, which depicts Athena without a helmet and wearing an aegis diagonally across her breast. This type is known from several Roman copies or free imitations, of which the most important are:

Polykleitos (/ˌpɔːliˈklaɪtoʊs/; Ancient Greek: Πολύκλειτος) was an ancient Greek sculptor, active in the 5th century BCE. Alongside the Athenian sculptors Pheidias, Myron and Praxiteles, he is considered as one of the most important sculptors of classical antiquity. The 4th century BCE catalogue attributed to Xenocrates (the "Xenocratic catalogue"), which was Pliny's guide in matters of art, ranked him between Pheidias and Myron. He is particularly known for his lost treatise, the Canon of Polykleitos (a canon of body proportions), which set out his mathematical basis of an idealised male body shape.

None of his original sculptures are known to survive, but many marble works, mostly Roman, are believed to be later copies.

Myron of Eleutherae (480–440 BC) (/ˈmaɪrən/; Ancient Greek: Μύρων, Myrōn [mý.rɔːn]) was an Athenian sculptor from the mid-5th century BC. Alongside three other Greek sculptors, Polykleitos, Pheidias, and Praxiteles, Myron is considered as one of the most important sculptors of classical antiquity. He was born in Eleutherae on the borders of Boeotia and Attica. According to Natural History, a Latin encyclopedia by Pliny the Elder (AD 23 – 79), a scholar in Ancient Rome, Ageladas of Argos was his teacher.

None of his original sculptures are known to survive, but there are many later copies of his works, such as his Discobolus, mostly Roman.