Primus

Lord Primus
Lord Primus was a Jedi Knight in 47 ABY.

Origins
Primus was born on the planet Onderon in 40 ABY. He was found by a Jedi Master scouting the area for recruits. Taking him to Yavin 4, Primus began his training in 50 ABY. He quickly excelled at everything he did. However, his master sensed a potential appeal for the dark side in the young man. He was made a knight after graduation. However, he had a mental disorder that prevented him from becoming a master. Primus decided to live in the Jedi Enclaves on Mustafar.

Temptation by the Dark Side
Primus became plagued by visions of Darth Zannah, which lead him to believe he would become a sith. He tried to stab himself with his lightsaber, but was stopped by a Jedi Master who had come to visit him. Fearful of endangering the galaxy, he cut off his own arm, though it was replaced by a prosthetic one.

New Sith War
Primus became embroiled in the New Sith War in 72 ABY. He was among those sent to kill the Sith Lord Darth Yovi. He was able to land a blow on the sith lord, but was then killed by Hobbes.

Weapons
Primus wielded a light blue lightsaber.