At one point, after giving birth to another daughter, her husband became annoyed and secretly hired a magical assassin to eliminate her. When Kalis and her infant daughter was returning from her trip to Vengerberg accompanied by Yennefer and a group of guards, the convoy was attacked by a krallach controlled by the assassin. Yennefer managed to teleport Kalis into different locations numerous times but each time the assassin with his monster followed; at last, when Yennefer dissappeared, Kalis was left with the assassin alone. She begged him to leave her, promising to give birth to a son and proposing to kill only the infant daughter, but the assassin ignored her pleas and telekinetically threw a knife, slitting the queen's throat.
- Kalis appears by name for the first time in Netflix's The Witcher, played by Isobel Laidler. Before that, she is mentioned in Thronebreaker: The Witcher Tales but without name.
- While not mentioned on screen yet, she is confirmed by Lauren Schmidt Hissrich as intended to be Meve's mother.