Nerim Kors

Nerim Kors was a Jedi Master who trusted Supreme Chancellor Palpatine unreservedly. His friend's betrayal drove him insane and made him fall to the dark side, and he was forced to flee known space, travelling deep into the Unknown Regions. There he found remnants of earlier Human colonies, as well as the Nagai, a pale-skinned, warlike race. He united these peoples into the Second Republic, in which he himself ruled supreme, and immediately began to prepare for a total war against the Empire, although this attack never came. Instead Kors' forces attacked the New Republic in 20 ABY.