In Greek mythology, the first king of the gods is Uranus. He symbolizes the sky and is the progenitor of several important deities, including Cronus and Rhea. Uranus' reign is marked by chaos and is characterized by his eventual overthrow by Cronus, establishing a new order among the gods. This transitioning in power illustrates themes of creation, fertility, and the cyclical nature of divine leadership, showcasing the ongoing struggle for supremacy within the pantheon.