In the mirror universe, Lursa was a female Klingon in the 24th century. Lursa was the daughter of Ja'rod and a member of the House of Duras in the mirror universe. She was also the sister of Duras and B'Etor. After Duras's death at the hands of Melka, Regent Worf gave her leadership of her House. (ST novel: Dark Passions, Book One)