And there (at Evenus River) Nessus, it is said, who had been appointed ferryman, was killed by Heracles because he tried to violate Deianeira when he was ferrying her across the river.
Nessus, (Nessos). A Centaur, who used to ferry travellers over the river Evenus. On attempting to outrage Deianira, the wife of Heracles, he was shot by the latter with one of his poisoned arrows. Upon this he presented Deianira with a portion of his poisoned blood, professedly to enable her to regain her husband's affections, should he prove false to her. A robe smeared with this blood proved fatal to Heracles.
This text is from: Harry Thurston Peck, Harpers Dictionary of Classical Antiquities. Cited Oct 2002 from The Perseus Project URL below, which contains interesting hyperlinks
Nessos : Various WebPages
Son of Ares, father of Marpessa, throws himself into a river, which is named after him.
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