Palaechthon
In Greek mythology, Palaechthon or Palaichthon was the father of Pelasgus, king of Argos and eponym of the Pelasgians.
Aeschylus
In The Suppliants, Aeschylus writes that:Palaechthon is not mentioned outside of this passage by Aeschylus, who seems to have invented him.