A female Human, recognizable by her long brown hair styled in a ponytail, served as an Imperial Knight for Emperor Roan Fel of the Galactic Empire in 130 ABY. Following the defeat of the Galactic Alliance by Fel's forces and their victory in the Sith–Imperial War, the Sith who were allies of the Empire turned against the Emperor. Upon learning of a planned murder attempt on his life by the Sith Lord Darth Krayt, Fel went into exile. To create a diversion, he dispatched the brown-haired female and three other Imperial Knights to confront Krayt. The Dark Lord arrived at the Imperial Palace located on Coruscant, the Empire's throneworld, and killed all four Knights before declaring himself the Emperor of a new Empire.
In 130 ABY, a Human female with lengthy brown hair arranged in a ponytail served as an Imperial Knight. These Imperial Knights were Force-users who served Emperor Roan Fel of the Galactic Empire. During that year, this brown-haired female was part of a scheme devised by Fel to deceive the Sith Lord Darth Krayt. After the conclusion of the Sith–Imperial War, Director of Imperial Intelligence Nyna Calixte informed Fel that the Sith, who had aided his Empire in defeating the Galactic Alliance and winning the war, were planning to betray him. Darth Krayt intended to murder Fel and seize the Imperial throne during an upcoming Moff Council meeting. Consequently, Fel fled the Imperial throneworld of Coruscant. Before his departure, he arranged for his double to meet with Krayt in the Imperial Palace, buying him time to escape.
Mohrgan Fel, an Imperial Knight and the Emperor's cousin, volunteered to lead the brown-haired female and two other Knights against Krayt to further the deception. Alongside her three comrades, the brown-haired female stood guard around the decoy Emperor as he and the Moffs discussed the ramifications of the war's end. Krayt arrived with three of his fellow Sith Lords and demanded Fel's life, prompting Mohrgan to order the Knights to protect their Emperor. Krayt, wielding two lightsabers, swiftly killed the four Knights despite their attempts to defend themselves. He then struck down the decoy Emperor and proclaimed himself the Emperor of a new Empire. Fel and the surviving Imperial Knights were forced into exile.
The brown-haired female was an Imperial Knight, a group exclusively for individuals with potential in using the Force. The Imperial Knights were considered among the most skilled and dangerous Force-users in the galaxy. While the Imperial Knights did not participate in the Sith–Imperial War at the Emperor's instruction, the brown-haired female did fight a Sith after the war. Darth Krayt easily defeated her and three other Imperial Knights using his dual lightsabers.
The brown-haired female was one of the four unidentified Imperial Knights introduced in the first issue of the Star Wars: Legacy comic book series, written by John Ostrander, penciled by Jan Duursema, and released in June 2006. The events of that issue were recounted in Legacy's eighth issue (February 2007), where three of the Knights remained unidentified and one was named Mohrgan.