These two were sons of Atreus, and were descended from Tantalus, once a favourite of the gods, who used to come down and feast with him, until once he took his son Pelops and dressed him for their meal.  Jupiter found it out, collected the limbs, and restored the boy to life; but Ceres had been so distracted with grief about her daughter, that she had eaten one shoulder, and Jupiter gave him an ivory one instead.  Tantalus was sent to Tartarus, where his punishment was to pine with hunger and thirst, with a feast before him, where he neither could touch the food nor the drink, because there was a rock hung over his head threatening to crush him.  Pelops was a wonderful charioteer, and won his bride in the chariot race, having bribed the charioteer of his rival to leave out the linchpins of his wheels.  Afterwards, when the charioteer asked a reward, Pelops threw him into the sea; and this was the second crime that brought a doom on the race.  Pelops gave his name to the whole peninsula now called the Morea, or mulberry-leaf, but which was all through ancient times known as the Peloponnesus, or Isle of Pelops.  He reigned at Elis, and after his death his sons Atreus and Thyestes struggled for the rule, but both were horribly wicked men, and Atreus was said to have killed two sons of Thyestes, and served them up to him at a feast.  There was, therefore, a heavy curse on the whole family, both on Ægisthus, son of Thyestes, and on his cousins Agamemnon and Menelaus, the Atridæ, or sons of Atreus.