They are sisters; both daughters of Rhea and Cronus.
Hestia, Demeter, Hera
Ares is the nephew of Demeter. Demeter's siblings are Zeus and Hera, the father and mother of Ares.
Brothers: Hades Zeus Sisters: Hera Hestia Demeter
Demeter and Hestia were Hera's sisters.
They are sisters, both goddesses, Hera the Queen of Heaven, and Demeter the Queen of Earth.
Hera's sisters are Demeter and Hestia. In Roman mythology, Hera's name is Juno, Demeter's name is Ceres, and Hestia's name is Vesta.
Hestia
Hestia, Demeter,
Hera the goddess of women and marriage. He also married Leto,who had Artemis and Apollo.
Sisters: Hera, Hestia Brothers: Poseidon, Hades, Zeus
Demeter's siblings are Hera, Hestia, Hades, Poseidon, and Zeus
Hestia, Hera, and Demeter.