Zeus, God of Sky and Thunder, his most famous power was he could throw lighting bolts and he had a horse called Pegasus to carry the thunder bolts, he also trained an eagle which could collect lighting bolts, Zeus lived on Mount Olympus and is the youngest out of all the siblings to be born.
Poseidon, God of the Seas, the second oldest and also brother of Zeus, live in Mount Olympus with all other eleven Olympians but also lives in the oceans and he has a trident with him in which he can control the oceans and cause earthquakes on land.
Hades, God of the Underworld, brother of both Zeus and Poseidon also the oldest out of the three but he doesnt live in Mount Olympus with the other Gods, Hades lives in the Underworld as he drew the shortest straw between himself and his two brothers, he also has a three headed dog called cerberus that helps him guard the gates to the Underworld.