Winslau Da'k's Jedi Master

A Jedi Knight of the Old Jedi Order, he trained Padawan Winslau Da'k during the Clone Wars.

After Order 66 Da'k encountered Darth Vader who sent him down the path of the dark side.

After this encounter, Da'k outsmarted his own Jedi Master and imprisoned him on Morcanth, a remote planet in the Unknown Regions. There he used his powers to gain wealth and luxury, while delving into the dark side.

After the death of the Emperor and the formation of the New Jedi Order, a group of New Republic agents and Jedi students infiltrated Morcanth, and defeated Winslau in combat. The old master, frail and dying, was released and able to escape. He then went on to join the Jedi and began training students once more.