Cleon, d. 422 B.C., Athenian political leader. The son of a tanner, he had little education; nevertheless, he was a gifted speaker. He began his political career with a series of relentless attacks on Pericles. He was antagonistic to Sparta and successfully opposed (425 B.C.) Sparta's peace proposals. In the same year he was given command of the Athenian force blockading Sphacteria (an island at the mouth of the Bay of Pylos) and was brilliantly successful against the Spartans. Three years later he was given another command against the Spartans at Amphipolis, but he failed and was killed in action. His reputation as a vulgar and unprincipled demagogue is chiefly due to accounts by his enemies Thucydides and Aristophanes.

Cleon (Greek: Κλέων) (d. 422 BC) was an Athenian Strategos during the Peloponnesian War. He was the first prominent representative of the commercial class in Athenian politics, although he was an aristocrat himself.

Early life

Cleon was the son of Cleaenetus, a member of the Aristocracy from whom he inherited a lucrative tanning business.

Public Service

Opposition to Pericles

He came into notice first as an opponent of Pericles, and curiously found himself acting in concert with the aristocrats, who equally hated and feared Pericles. During the dark days of 430, after the unsuccessful expedition of Pericles to Peloponnesus, and when the city was devastated by the plague, Cleon headed the opposition to the Periclean régime. Pericles was accused by Cleon of maladministration of public money, with the result that he was actually found guilty (see Grote's History of Greece, abridged ed., 1907, p. 406, note 1). A reversal of feeling, however, soon took place. Pericles was reinstated, and Cleon now for a time fell into the background.

Rise in popularity

The death of Pericles (429) left the field clear for new leadership in Athens. Hitherto Cleon had only been a vigorous opposition speaker, a trenchant critic and accuser of state officials but he now came forward as the professed champion and leader of the democracy, and, owing to the moderate abilities of his rivals and opponents, he was for some years undoubtedly the foremost man in Athens. Although rough and unpolished, he was gifted with natural eloquence and a powerful voice, and knew exactly how to work upon the feelings of the people. He strengthened his hold on the poorer classes by his measure for trebling the pay of the jurymen, which provided the poorer Athenians with an easy means of livelihood.

The notorious fondness of the Athenians for litigation increased his power; and the practice of "sycophancy" (raking up material for false charges), enabled him to remove those who were likely to endanger his ascendancy. In 426 Cleon brought an unsuccessful prosecution against Laches based on the generalship in the unsuccessful first Sicily expedition. This is one of the very few times that an Athenian general escaped civil punishment for a defeat. Having no further use for his former aristocratic associates, he broke off all connection with them, and thus felt at liberty to attack the secret combinations for political purposes, the oligarchical clubs to which they mostly belonged. Whether he also introduced a property-tax for military purposes, and even held a high position in connexion with the treasury, is uncertain.

War against Sparta and Death

Cleon's ruling principles were an inveterate hatred of the nobility, and an equal hatred of Sparta. It was mainly through him that the opportunity of concluding an honourable peace (in 425) was lost, and in his determination to see Sparta humbled he misled the people as to the extent of the resources of the state, and dazzled them by promises of future benefits.

In 427 Cleon gained an evil notoriety by his proposal to put to death the whole male population of Mytilene, which had put itself at the head of a revolt. His proposal, though at first accepted, was soon rescinded, though about 1000 chief leaders and prominent men of Mytilene were executed. In 425, he reached the summit of his fame by capturing and transporting to Athens the Spartans who had been blockaded at the Battle of Sphacteria. Much of the credit was probably due to the military skill of his colleague Demosthenes (not the orator); but it must be admitted that it was due to Cleon's determination that the Ecclesia sent out the additional force which was needed.

It was almost certainly due to Cleon that the tribute of the "allies" was doubled in 425. In 422 he was sent to recapture Amphipolis, but was out-generalled by the Spartan Brasidas. However, both Brasidas and Cleon were killed at Amphipolis and their deaths removed the chief obstacle to peace. Thus, in 421 the peace of Nicias was concluded.

Aristophanes and Thucydides on Cleon

The character of Cleon is represented by Aristophanes and Thucydides in a very unfavourable light. But neither can be considered an unprejudiced witness. The poet had a grudge against Cleon, who may have accused him before the senate of having ridiculed (in his lost play Babylonians) the policy and institutions of his country in the presence of foreigners and at the time of a great national war. Thucydides, a man of strong oligarchical prejudices, had also been prosecuted for military incapacity and exiled by a decree proposed by Cleon. It is therefore possible that Cleon has had injustice done to him in the portraits handed down by these two writers.


For the literature on Cleon see Karl Friedrich Hermann, Lehrbuch der griechischen Antiquilaten, i. pt. 2 (6th ed. by V. Thumser, 1892), p. 709, and Georg Busolt, Griechische Geschichte, iii. pt. 2 (1904), p. 988, note 3.

The following are the chief authorities:

  • Favourable to Cleon
    • C. F. Ranke, Commentatio de Vita Aristoprianis (Leipzig, 1845)
    • JG Droysen, Aristophanes, ii., Introd. to the Knights (Berlin, 1837)
    • G. Grote, History of Greece. chs. 50, 54
    • W. Oncken, Athen und Hellas, ii. p. 204 (Leipzig, 1866)
    • H. Muller Strubing, Aristophanes und die historisehe Kritik (Leipzig, 1873)
    • J. B. Bury, Hist, of Greece, i. (1902)
  • Unfavourable
    • J. F. Kortüm, Geschichtliche Forschungen (Leipzig, 1863), and Zur Geschichte hellenichen Statsverfassungen (Heidelberg, 1821)
    • F. Passow, Vermischte Schriften (Leipzig, 1843)
    • C Thirlwall, History of Greece, ch. 21
    • E Curtius, History of Greece (Eng. tr. iii. p. 112)
    • J. Schwartz, Die Demokratie (Leipzig, 1882)
    • H Delbrück, Die Strategie des Perikles (Berlin, 1890)
    • E. Meyer, Forschungen zur alten Geschichte, ii. p. 333 (Halle, 1899)
  • Balance between the two extreme views:
    • Karl Julius Beloch, Die attische Politik seit Perikles (Leipzig, 1884), and Griechische Geschichte, i. p. 537
    • A. Holm, History of Greece, ii. (Eng. tr.), ch. 23, with the notes.
    • H. Bengston, History of Greece: From the Beginnings to the Byzantine Era, Cleon p. 140


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