Zeus, the greatest of the Olympian gods, and the father of gods and men, was a son of Cronos and Rhea, a brother of Poseidon, Hades (Pluto), Hestia, Demeter, Hera, and at the same time married to his sister Hera. When Zeus and his brothers distributed among themselves the government of the world by lot, Poseidon obtained the sea, Hades the lower world, and Zeus the heavens and the upper regions, but the earth became common to all.
He was the king of the gods, the god of sky and weather, law, order and fate. He was depicted as a regal man, mature with sturdy figure and dark beard. His usual attributes were a lightning bolt, royal sceptre and eagle.
source: www.theoi.com
image: Polidoro Caldara da Caravaggio
