Kronos
In fear of a prophecy that told of him being overthrown by his own children, Kronos swallowed each of them as soon they were born. Only the youngest, Zeus, managed to escape this fate and, after freeing his siblings, waged war against Kronos and the other Titans. During this Titanomachy, the Olympians emerged victorious, and Kronos himself was cast into Tartarus. In some versions, Kronos was later freed by Zeus and became ruler of the Elysian Islands.