A Jedi Master from Episode I, she is one of the more mysterious Jedi.  Of the same race as Yoda, she is much younger, only 477 at the time of Episode I.  One of the best Jedi scholars ever, she also trained fellow Council member Oppo Rancisis and the Jedi Knight Empatojayos Brand.  As a result of her scholarly knowledge, one of her more potent powers is being able to catastrophically slow the bodily functions of target beings.  Wild tales are told of her being trapped in an underground maze for over 100 years before she finally escaped.    Many other stories of her are told, none of which are known to be true or not.  We know nothing of her death, if indeed she died, but even if she survived until the Jedi Purge, she was almost certainly killed by Darth Vader, as she was not good at all at fighting.