Parthenopeus

For the hero of mediaeval romance, see Partonopeus de Blois

In Greek mythology, Parthenopeus or Parthenopaeus /pɑːrˌθɛnəˈpiːəs/ (Παρθενοπαῖος) was one of the Seven Against Thebes, a native of Arcadia, described as young and outstandingly good-looking, but at the same time arrogant, ruthless and over-confident, although an unproblematic ally for the Argives.

Parthenopaeus was the son of Atalanta by either her husband Hippomenes (Melanion), or by Meleager, or Ares. A less common version makes him a son of Talaus and Lysimache (which makes him a close relative of the other members of the Seven and thereby motivates his involvement in the war). Hyginus writes that he was left exposed by Atalanta on Mount Parthenius ("virginal") in Arcadia, so that she could conceal the fact that she was not a virgin anymore; the name Parthenopaeus is accordingly interpreted by Hyginus as "seemingly-virginal" or the like, as if referring to the fact that his mother was pretending to still be a virgin. He was subsequently rescued by a shepherd, along with Telephus, the son of Auge and Heracles, who had been abandoned on the same mountain, and the two boys were good friends. Parthenopaeus went with Telephus to Teuthrania, where he helped him repulse Idas's invasion of the kingdom of Teuthras.

...
Wikipedia