First of all, Cerberus is not a god, he is a dog.
Cerberus is a three headed (or in some cases, hundred-headed) dog in Greek mythology who guards the Underworld and prevents the living from entering and the dead from leaving.
He is the one of the many offspring of Echidne (half-serpent, half-woman) and Typhon (the most fierce of all creatures).
Cerberus wasn't a god at all.
Cerberus is a three headed dog belonging to the God of the Underworld, Hades.
Cerberus is a three headed dog, a guardian of the Underworld, owned by Hades; the God of the Underworld and the dead. Cerberus does not have a significant other.
Cerberus was not a ruler. It was the three-headed beast-guardian of the realm of Hades, Greek god of the underworld.
Pluto, also known as the Greek God Hades has a dog named Cerberus. But Cerberus is often portrayed with three heads.
The name Cerberus is Roman already. It's a latinisation of Kerberos, which is the Greek name.
Cerberus was the offspring of Typhon and Echidna. During one of his quests with his brothers Zeua and Poseidon, he found Cerberus and took a liking to him. Cerberus was then given to Hades by the parents because they saw that Hades would take care of him.
Difficult to answer - he is the servant of Hades - in the same way that Cerberus is Hades' pet dog. As a resident of the underworld he is not a mortal but he is also not a god. However unlike Cerberus he is not a monster.
Hades is the god of the Underworld in Greek Mythology. Cerberus was the three-headed dog that guarded the Underworld. They are related by both living in the Underworld. From Atlantis01: actually...hades is a place not a god, Hades is the underworld not the god that rules it. so hades is guarded by Cerberus. From gmully123: actually....yes he is a god. Hades was Zeus and Poseidon's brother and when they defeated the Titans and took over the universe, Hates respectfully became the god of the underworld. While Zeus and Poseidon took the upper world.
Hades is a God, not a place. So therefor Cerberus is not located anywhere in Hades. However, Cerberus guards the Underworld. But he is usually found at Hades' side.
Depending on sources the siblings of Cerberus include Orthos, the Hydra of Lerna, Khimaira, the Sphinx, the Hesperian Drakon, the Caucasian Eagle, the Crommyonian Sow, Gorgon, the Dragon of Colchis, Scylla, as well as the otherwise unnamed Echidnades (son of Ekhidna).
He had many, the most recognizable today are; Cerberus The Helm of Darkness Keys to Hades