Uranus is mostly known for his tumultuous relationship with Gaia, who was also his mother (We’re not sure if that’s what caused a few of their problems.) Together, Uranus and Gaia had many children: the 12 Titans, 3 cyclopses, and 3 hecatoncheires (creatures with 100 hands of unimaginable strength and 50 heads). Due to a prophesy in which one of his sons overthrew him, he banished the children (sources vary as to whom and how many) back into Gaia’s womb. In retribution, Gaia gave Cronus (one of their children) a sickle to castrate Uranus. Guess who was king of the gods now? If you said Cronus, you guessed right!