Plato

Aristokles (428/427 BC - 413 BC) was a young follower of Sokrates, as was his uncle, Kritias. When Sokrates returned from the Atheninan expedition to Sicily, Aristokles distinguished himself as an astute thinker. After Alkibiades seized power in Athens, Kritias denounced him as a tyrant, and was murdered in the public square. Aristokles pledged to avenger Kritias, and was also murdered. These two deaths spurred Sokrates to denounced Alkibiades, an act which cost him his own life.