Marion Eleanor Zimmer Bradley was an American author of fantasy, historical fantasy, science fiction, and science fantasy novels, and is best known for the Arthurian fiction novel The Mists of Avalon and the Darkover series. Noted for the feminist perspective in her writing, her reputation has been posthumously marred by her daughter Moira Greyland's accusations of child sexual abuse, and for allegedly assisting her second husband, convicted child abuser Walter Breen, in sexually abusing multiple unrelated children.

Historical fantasy is a category of fantasy and genre of historical fiction that incorporates fantastic elements into a more "realistic" narrative. There is much crossover with other subgenres of fantasy; those classed as Arthurian, Celtic, or Dark Ages could just as easily be placed in historical fantasy. Stories fitting this classification generally take place prior to the 20th century.