 According to these stories, her full name was once Nimue Inwudu and she is the youngest sister of Morgana (to become Morgaine Le Fay) and Vivienne, the Lady of the Lake.The sisters are descendants of the Elder Folk, survivors of Atlantis who evolved into the race known as the "Homo magi".Madame Xanadu is the same Nimue who casts an imprisoning spell on her former lover Merlin, blaming him for manipulating Camelot and the course of history for his own gain.