Lurline, Queen of the Fairies

Origin
Much like the Wicked Witch of the South, Lurline is never directly depicted as a character in any of the Oz books. She is, however, a crucial figure in the backstory and origin of Oz.

L. Frank Baum first mentions her in The Tin Woodman of Oz, Chapter 12, where he states that Lurline's fairy band was passing over the isolated land of Oz when they enchanted the country; and Lurline left one of her fairies to "rule" it. Lurline then "forgot all about" Oz.

Baum next mentions Lurline in Glinda of Oz, Chapters 6 and 8, where he repeats this bare origin account and names Ozma as the fairy left to rule Oz.