Polykleitos. Polykleitos was an ancient Greek sculptor in bronze of the 5th century BC. Alongside the Athenian sculptors Pheidias, Myron and Praxiteles, he is considered one of the most important sculptors of classical antiquity.
   The 4th century BC catalogue attributed to Xenocrates, 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, setting out his aesthetic theories of the mathematical bases of artistic perfection.
   None of his original sculptures are known to survive, but there are many of what are believed to be later copies in marble, mostly Roman. His Greek name was traditionally Latinized Polycletus, but is also transliterated Polycleitus and, due to iotacism in the transition from Ancient to Modern Greek, Polyklitos or Polyclitus.
   He is sometimes called the Elder, in cases where it is necessary to distinguish him from his son, who is regarded as a major architect but a minor sculptor. As noted above, Polykleitos is called The Sicyonian by some authors, all writing in Latin, and who modern scholars view as relying on an error of Pliny the Elder in conflating another more minor sculptor from Sikyon, a disciple of Phidias, with Polykleitos of Argos.
   Pausanias is adamant that they were not the same person, and that Polykleitos was from Argos, in which city state he must have received
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