His eponymous canon, which emphasized chiastic balance, became a standard for sculptors.  
This sculptor's younger namesake was a famed architect who designed the Tholos and Theatre at Epidauros.  His eponymous canon, which emphasized chiastic balance, became a standard for sculptors.  Roman coins show and Pausanias described his gold and ivory Hera in a temple at Argos.  For ten points, name this head of the Argive school and sculptor of athletes, best known for Diadumenus, Amazon and Spear-Bearer.
This sculptor's younger namesake was a famed architect who designed the Tholos and Theatre at Epidauros.  
Polykleitos the Elder (or Polyclitus)