In Greek mythology, Ixion was king of the Lapiths, the most ancient tribe of Thessaly, an a son of Ares or Antion or the notorious evildoer Phlegyas, whose name connotes "fiery". Peirithoös was his son (or stepson, if Zeus were his father, as the sky-god claims to Hera in Iliad 14). Ixion married Dia, a daughter of Deioneus (or Eioneus) and promised his father-in-law a valuable present. However, he did not pay the bride price, so Deioneus stole some of Ixion's horses in retaliation. Ixion concealed his resentment and invited his father-in-law to a feast at Larissa. When Deioneus arrived, Ixion pushed him into a bed of burning coals and wood. These circumstances are secondary to the fact of Ixion's primordial act of murder: in the Greek Anthology (iii.12), among a collection of inscriptions from a temple in Cyzicus is an epigrammatic description of Ixion slaying Phorbas and Polymelos, who had slain his mother, Megara.