Mother Aniseya was a human female who lived during the High Republic Era. She led an exiled coven of witches and eventually settled the group on the planet Brendok after they had suffered persecution for some time. Around 156 BBY, Mother Aniseya created the twin children Mae-ho and Verosha Aniseya, who were then carried until their birth by Mother Koril. Mother Aniseya Koril raised the sisters together as their mothers, though the pair often disagreed on how to raise the twins.
In 148 BBY, Aniseya hosted Rite of Ascension ceremony for her daughters to become witches. When several visiting Jedi interrupted, and Mother Aniseya agreed to let the pair be tested after Jedi Master Indara insisted. Not long after, Aniseya died when she attempted to forestall further conflict during a confrontation with Master Sol and the Padawan Torbin where the Jedi questioned her about the nature behind her daughters' birth. Triggering the beginnings of a transformation within both herself and Mae-ho, Aniseya was killed by Sol, who mistook her efforts as an attack against him and struck out with his lightsaber, mortally wounding the witch, who explained with her dying breaths that she had been intending to allow Verosha to leave and join the Jedi Order. Her death having started the following skirmish, except for Verosha and Mae-ho, who had sparked a fire to prevent Verosha from leaving to become a Jedi, Aniseya's entire coven subsequently perished. Verosha—who became a Padawan afterward—grieved her mothers' deaths for several years afterward.