The Titans

The Titans were more powerful than even the gods. They ruled the era before the gods and the mortals of the time hated it. There are little if any accounts of life under the reign of the titans, but it is not difficult to surmise that it was literally living hell. The Titan king Kronus (also spelled Cronus) was a ruthless ruler who cared for nobody but himself.
The story of Kronus is this:
Kronus was told by an oracle that one day a son would be born unto him and his wife Rhea whom would destroy him. (So naturally instead of just not making love with his wife anymore, Kronus must eat every son that is born to him.) He ate his own sons until one day Rhea had a son without his knowledge. She named this son Zeus and hid it from her husband. When he asked where the child was, she wrapped a rock in poison and blankets and told him that this was her son. He consumed it and began to retch and writhe violently. Zeus, now of age to fight, came sweeping in to assist the Lord of Time to his inevitable death. He chopped his father into tiny pieces and cast him into the pits of Tartarus, where he would remain for eternity.