Demeter's worship is known as the Eleusinian Mysteries.
Demeter is a goddess; she does have her own cult and host of gods and goddesses as aides.
The Eleusinian Mysteries (the cult of Demeter and Persephone) were the most famous of the secret religious rites of ancient Greece.
Allaire Chandor Brumfield has written: 'The Attic festivals of Demeter and their relation to the agricultural year' -- subject(s): Agriculture, Cult, Demeter, Demeter (Greek deity), Festivals, Religion, Religious Mysteries
Demeter is a goddess of fertility, grain, and agriculture. She is pictured as a mature motherly figure. Although she is the goddess who taught mankind about agriculture, she is also the goddess responsible for creating winter and a mystery religious cult. Demeter is usually accompanied by her daughter Persephone.
Demeter cult titles includes Sito (she of the Grain, the giver of grain) and Thesmophoros (bearer, giver of divine order, law-bringer). As a goddess did not have duties. She was the goddess of grain, the harvest, who presided and the fertility of the earth.
Despoina was a fertility goddess who was worshiped alongside her mother Demeter in an mystery-cult. Her father was Poseidon. Despoina is the title "Mistress", this goddesses name is otherwise lost.
There was no "god of Demeter", Demeter was a Greek goddess.
Demeter
Demeter was not married. Demeter had two consorts in Karmanor and Iasion.
Persephone, Despoina, Eubuleus, Arion, Plutus, Philomelus, Iacchus, Acheron, Hecate (Orphic)
Demeter was older. Demeter was born of Cronus and Rhea. Her brothers were Zeus, Hades, and Poseidon. Since Artemis is a daughter of Zeus, Demeter's youngest sibling, Demeter has to be older. This also makes Artemis Demeter's niece.
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