Afterwards, In the summer of 411 B.C., Phrynichus having been deposed from his command at Samos, and showing himself and ardent supporter of the revolutionary Four Hundred at Athens. however, when Hermon, The name is wrong, and has crept into the story by an error which can be traced. Hermon was commander of the frontier guard stationed at Munychia. ( Thuc. 8.92.5 ). one of the frontier guard, had smitten Phrynichus with a dagger and slain him in the open market-place, the Athenians tried the case of the dead man, found him guilty of treachery, and awarded crowns to Hermon and his accomplices. But at Samos the friends of Alcibiades soon got the upper hand, and sent Peisander to Athens to change the form of government. He was to encourage the leading men to overthrow the democracy and take control of affairs, with the plea that on these terms alone would Alcibiades make Tissaphernes their friend and ally. This was the pretence and this the pretext of those who established the oligarchy at Athens.