She was born following her father's disgrace

Greek mythology states that Cronus ousted his father Uranus and established global control alongside his wife Rhea. He was informed, nevertheless, that one of his offspring would eventually topple him just as he had done with his father. Demeter was one of the many kids Cronus had with Rhea, but he devoured the entire birthing class. But when Rhea gave birth to her sixth child, Zeus, she concealed him in a cave and gave Cronus a stone that he swallowed. When Zeus reached adulthood, he impersonated an Olympian cupbearer, poisoned his father's wine, and then deceived him into drinking it.

As a result, Zeus' brothers Hades and Poseidon, as well as his sisters Hestia, Demeter, and Hera, were disgorged by Cronus. Zeus then engaged in combat with Cronus and the other Titans in the Titanomachy alongside his siblings, the Hecatonchires and the Cyclopes. He won the battle and deposed Cronus. Persephone was born as a result of Demeter's later affair with her brother Zeus.