Abeloth was a Force entity introduced in the Fate of the Jedi books series. You know how there are some long Wookieepedia entries, and then there are some long ones that start out like, “Abeloth, self-styled as the Beloved Queen of the Stars and also known as the Bringer of Chaos and the Destructor, was an extremely powerful Force entity.”
Check out this wonderful page here. Someday I hope to come back to this entry and update it but I need to read a bunch of books first…
Check out the entire list of women in 365 Days of Star Wars Women in the Women in Star Wars Index. It includes highlights from each post plus notes which posts include new 365 interviews with actresses, writers, artists, and more.