PUT EVERYTHING INTO OWN WORDS LATER
Information on Zeus
Zeus was the god of the sky and ruler of the Olympian gods. He overthrew his father, Cronus, and then drew lots with his brothers Poseidon and Hades, in order to decide who would succeed their father on the throne. Zeus won the draw and became the supreme ruler of the gods, as well as lord of the sky and rain. His weapon was a thunderbolt which he hurled at those who displeased or defied him, especially liars and oathbreakers. He was married to Hera but often tested her patience, as he was infamous for his many affairs. Zeus is also called Jupiter, Dias.
Information on Poseidon
Poseidon is the god of the sea and protector of all aquatic features. Brother of Zeus and Hades, after the overthrow of their father, Cronus, he drew lots with them to share the universe. He ended up becoming lord of the sea. He was widely worshipped by seamen. He married Amphitrite, one of the granddaughters of the Titan Oceanus.
Poseidon is also called Neptune.
Information on Hades
Hades was the brother of Zeus and Poseidon. After the overthrow of their father, Cronus, he drew lots with them to share the universe. He drew poorly, which resulted in becoming lord of the underworld and ruler of the dead. Nevertheless, he was not considered to be death itself, as this was a different god, called Thanatos. Greedy like his brother Poseidon, he was mainly interested in increasing his subjects, and anyone whose deeds resulted in people dying was favoured by him. The Erinnyes (the Furies) were welcomed guests in his kingdom.
Hades is also called Pluto, Dis Pater, Orcus, Plouton.
3 of the most famous gods I would say.