Sicinnus
Sicinnus (Σίκιννος, Síkinnos) is a figure associated with the Greco-Persian Wars, specifically with the Battle of Salamis in 480 BCE. He is remembered primarily for his role as a deceptive messenger in the service of Themistocles, the Athenian general and statesman who played a key role in the Greek victory over the Persian Empire. During the Persian invasion led by Xerxes I, the Greek city-states formed an alliance to defend against the vastly larger Persian force. The naval battle was a turning point in the conflict, and Sicinnus played a crucial part in the events leading up to it.
According to Herodotus, who provides the most detailed account of Sicinnus' actions, Themistocles devised a plan to lure the Persian fleet into the Salamis strait, where the Greek triremes could better utilize their maneuverability against the larger Persian ships. Sicinnus was sent to Xerxes under the pretense of defecting to the Persian side; he falsely informed Xerxes that the Greeks were in disarray and planning to flee, persuading the Persian king to order his fleet to block the exits from the Salamis strait and engage the Greeks in a naval battle in conditions that favored the Greek fleet. The subsequent battle resulted in a decisive Greek victory, significantly weakening the Persian naval power and contributing to the eventual withdrawal of Persian forces from Greece.