Day 5 of the 31 Days of Devotion asks, “Who are Members of the family? – genealogical connections of this Deity.” Like many aspects of this Goddess, the Hekate Genealogy is complicated at best.
In Hesiod’s Theogony, Hekate is said to be the daughter of Perses and Asteria. In this case, there is some debate as to whether the Perses mentioned here is of Greek origin or if the name denotes a title of a Persian God, which matches the idea that Hekate is a foreign deity related to Kybele and the Minoan Snake Goddess.
In other stories and poems She is said to be the daughter of Zeus and Asteria.
Others still claim She is the daughter Nyx. The relation to Nyx, I can easily see as the Goddess of the Night Sky is closely related to Asteria, the star-Goddess. Both denote that Hekate is of astral origin.
A more modern cultus belief is that she is the daughter of Demeter and sister to Persephone, though this one was probably created to better fit her into the mythos of Persephone and the Elusinan Mysteries.
This is another point of debate. Hekate is said to be a virgin goddess without partner or children. Still, some myths and stories claim she does have children.
Skylla, the sea monster, said to be born to Phorkys and Krataiis-Hekate. Other myths say that Skylla was a nymph cursed to turn into a monster by Kirke.
Kirke and Medea are said to be daughters of Hekate but also have other parentage notes in their stories. I believe that, in this case, their roles as daughters is more like a title given to devoted witch-priestesses. They are more like adopted daughters to the Goddess.
Hekate’s cousins include the twins, Apollo and Artemis.
Artemis and Hekate are often conflated and share many similar features including beasts, bow, and maidenhood. They are also both connected to the witch-Goddess Diana.
Apollo and Hekate are closely related in the same way as Hekate and Helios – both are light bringers and connected to well-known and powerful oracle cults.