Demeter isn't in The Odyssey, but Persephone is the wife of Hades, therefore the Queen of the Underworld. Also when Odysseus travels to the Underworld, and finds his mother, she mentions something about Queen Persephone.
If you are talking about Mythology then Demeter was Persephone's mother. Zeus was her father.
Persephone did return to spend half the year on Earth between her mother, Demeter, and then to the Underworld to be with her husband, Hades.
The main characters of the myth of Demeter and Persephone are Demeter, the goddess of agriculture and fertility, and her daughter Persephone, the goddess of spring and rebirth. The story centers on Persephone's abduction by Hades, the god of the underworld, which leads to Demeter's grief and the subsequent neglect of the earth, causing a barren winter. Their reunion each year symbolizes the cycle of seasons, with Demeter's joy bringing spring and Persephone's descent into the underworld marking the onset of winter. Together, they embody the themes of loss, renewal, and the connection between life and death.
In the myth of Persephone, the climax is when Persephone is abducted by Hades and taken to the Underworld against her will. This event triggers the conflict between Demeter and Hades, leading to the negotiation for Persephone's return.
There was only one child between Zeus and Demeter, and that was Persephone.
Three things; Persephone kidnapped/rape Demeter wrath on Earth Demeter finds Persephone, and must give up her daughter between autumn and spring.
Zeus sent the god Hermes to intervene in the myth of Demeter and Persephone. Hermes acted as a messenger between Hades and Demeter, helping to negotiate Persephone's release from the Underworld.
The goddess who caused changes in the seasons is Demeter in Greek mythology. She is the goddess of agriculture, fertility, and the harvest, and her relationship with her daughter Persephone explains the seasonal cycle. When Persephone is in the Underworld with Hades, Demeter grieves, leading to winter; when Persephone returns to the surface, Demeter rejoices, and spring and summer follow. This myth symbolizes the agricultural cycle and the connection between life, death, and rebirth.
Loss and love: the loss of Persephone from the Earth goddess Demeter, the love of Hades for Persephone, the love of Demeter for Persephone.
In Greek mythology, Demeter did not have a romantic relationship with Hades. However, she did confront him when he abducted her daughter Persephone to the Underworld, which ultimately led to a compromise that allowed Persephone to split her time between the Underworld and the surface world.
In Greek mythology, Demeter is the goddess of harvest. Her daughter is Persephone. Hades is the god of the underworld and he kidnapped Persephone. To make a long story short, there was an agreement made between Hades and Demeter to share Persephone. When Persephone is with Hades, Demeter is so sad that nothing will grow and that is why winter happens.
Demeter is Hades' sister, nemesis, and something of an antithesis. They are both the children of Cronus and Rhea. Hades abducted Demeter's daughter Persephone, leading to a fair bit of tension between the two. Demeter is a fertility goddess, and Hades is the god of the dead.