Lolotte

She was an evil fairy cast out of Etheria's Cloudland for treachery and wicked deeds when Edgar was just a baby. In revenge she concocted a scheme to kidnap the prince from his home. Once she had him she changed his appearance and called him her own.

She later dwelt in Tamir, the land where Genesta also lived. However she turned evil and stole Genesta's Talisman (which was the source of Genesta's powers and her life force) in an attempt to murder her and kidnapped her nephew Edgar (the prince of Fairies) in a plot to overthrow her sister Titania.

She also sought the fabled artifact "Pandora's Box" in order to rule the world by unleashing its terrible evil. She was killed by Cupid's arrow by Princess Rosella of Daventry, and after her death, Edgar was released by Genesta and Genesta was made the ruler of Tamir.

Real Life
Some fans have chosen to think of Lolotte as another one of Titania's sisters in their fiction, but this is not the case. In official lore she is just an evil fairy from cloudland jealous of the fairy royalty's positions.