Poseidon’s brother is Zeus, the king of the gods in ancient Greek mythology. Alongside Hades, who is another brother, they make up the three main deities that ruled over different realms of the universe.
Zeus, the god of the sky and thunder, is often depicted as the most powerful of the three. Poseidon is the god of the sea, earthquakes, and horses, while Hades rules the Underworld. Their bonds and rivalries define many of the myths told in ancient Greece. The division of the cosmos was agreed upon after they overthrew their father, Cronus, with each god taking dominion over a specific aspect of existence.
Poseidon and Zeus, while brothers, have a complex relationship characterized by both cooperation and conflict in various myths, showcasing the rich tapestry of myths that surround these iconic figures.