Zeus was a major deity in ancient Greek religion, who rules as king of the gods of Mount Olympus. He is the god of sky and thunder in ancient Greek religion. He is the youngest son of Cronus and Rhea, and brother of Poseidon and Hades. He was often depicted as an older man with a beard, holding a thunderbolt in his right hand. According to Greek mythology, he overthrew his father Cronus and the Titans, in order to become the ruler of the gods. In addition, he also had the power to control the weather, particularly thunder and lightning. His attributes included the thunderbolt, eagle, bull and oak. He was also seen as the protector of justice, law and order, and was often worshipped as the god of kings, lawgivers, and justice. He was also seen as the patron god of travelers, hospitality, and guest-friendship. He was also associated with strength, truth and intelligence.