http://agathe.gr/democracy/sokrates.html
Sokrates The philosopher Sokrates was one of many Athenians critical of the people and their control over affairs of state. His probing public debates with fellow citizens led to his trial for impiety ... After executing him, the Athenians felt such remorse that eventually they commissioned a bronze statue of Sokrates, the work of the renowned sculptor Lysippos, which they set up in the Pompeion in Athens (Diogenes Laertios 2.43). A bust in Naples may reproduce the original by Lysippos. This small statuette found in the state prison may have been a memento recalling the Lysippan bronze.