Leia Organa, the princess of Alderaan, viewed a holo depicting undead gundarks – a combative species originating from the planet Vanqor. This occurred sometime following her fourth birthday, specifically in 15 BBY. This particular holo was available between that year and 3 BBY, and it frightened Organa to the point where she slept in the bed of her parents subsequent to watching it, despite her earlier conviction that she was too mature for such behavior.
Claudia Gray mentioned the holo in her 2017 novel, Leia, Princess of Alderaan.