Hippodamia's father, King Oenomaus of Pisa, was fearful of a prophecy that claimed he would be killed by his son-in-law. So when suitors arrived, he told them they could marry his daughter only if they defeated him in a chariot race, and if they lost, they would be executed. Eighteen suitors of Hippodamia had perished in this way, and Oenamaus had affixed their heads to the wooden columns of his palace. Pausanias was shown what was purported to be the last standing column in the late second century CE; the same author mentions that Pelops erected a monument in honor of all the suitors before himself, and enlists their names
