The best-known legends with which they are connected are those of Ixion (q.v.) and the battle with the Centaurs (q.v.).
As a punishment, Ixion was seized with madness, until Zeus purified him of his crime and admitted him as a guest to Olympus.
Ixion abused his pardon by trying to seduce Hera; but the goddess substituted for herself a cloud, by which he became the father of the Centaurs.
Ixion is generally taken to represent the eternally moving sun.
Ixion himself is probably a by-form of Zeus (Usener in Rhein.