Legacy of the Force
The Imperial Knights, formally the Knights of the Empire, were an order of Force-practitioners loyal to the Emperor of the Fel Empire. They were fully trained in the ways of the Force and rejected the dark side of the Force, unlike previous Imperial Force-based organizations. Though they did not draw on the dark side, they did not strictly follow the light side either, and were viewed as Gray by the New Jedi Order.
The Imperial Knights swore loyalty to their Emperor, serving the Force as embodied by him. By 130 ABY, Emperor Roan Fel was a fully-trained Imperial Knight, and the leader of the organization. However, if the Emperor were to ever fall to the dark side, it was the duty of the Imperial Knights to either remove him from power or bring him back to the light, as ultimately, it was the Force to which they owed their allegiance.
Following the Fel Empire’s displacement by Darth Krayt in 130 ABY, the Imperial Knights fled from the capital with their Emperor, becoming a part of his Empire-in-exile. By 137 ABY, several Imperial Knights were being routinely sent on missions by Roan Fel, as he sought to establish alliances with both the Galactic Federation of Free Alliances and the Jedi Order. They were often on the front lines of the Second Imperial Civil War, battling Darth Krayt’s forces on such planets as Vendaxa, Mon Calamari, and Had Abbadon.