A Dictionary of Greek and Roman biography and mythology

(Ἕρμων) is described by Thucydides as commander of the detachment of περίπολοι, or frontier guards, stationed at Munychia, and as taking in this capacity a prominent part in the sedition against the Four Hundred which Theramenes and Aristocrates excited in Peiraeeus, B. C. 411. Thucydides had just mentioned the assassination of Phrynichus by one of the περίπολοι, and from a confusion perhaps of the two passages comes the statement of Plutarch (Plut. Alc. 100.25), that the assassin was Hermon, and that he received a crown in honour of it. Such a supposition is wholly inconsistent alike with the historian's narrative and the facts mentioned by the orators. (Lys. c. Agorat. p. 492; Lycurgus, ad Leocr. p. 217.) It is hardly even a plausible hypothesis to identify him with the commander of the περίπολοι, at whose house, it appeared by the confession of an accomplice, secret meetings had been held. (Thuc. 8.92.) But he is probably the same who is mentioned in the inscription (Böckh, Inscr. Graec. i. p. 221), which records the monies paid by the keepers of the treasury of Athena in the Acropolis during the year beginning at Midsummer B. C. 410. One of the earliest items is "to Hermon for his command at Pylos." The place was taken no long time after, probably in the next winter but one.

[A.H.C]