A Human woman named Sunfell resided within the Eternal Empire during the era of the Galactic War and was identified as a female citizen. She belonged to the Knights of Zakuul, and after Empress Vaylin's rise to power, Vaylin personally selected her for inclusion in the newly formed Horizon Guard. Sunfell achieved the rank of Imperator by 3630 BBY, participating in the large-scale assault on Odessen that Vaylin launched after her escape from Nathema. During the conflict, the Alliance Commander faced Sunfell on the field of battle, resulting in Sunfell's death.