The Chained Lord is a NPC encounterd during and finishing Yekta's quest. He is never going to attack our Hero as he's the "key" that may permit Yekta to meet her family again if the player decides to have mercy of his life. The Chained Lord it's an giant obese rhogar, chained for who knows why to the room, making almost every movement impossible for him.
-TheKing91 (PS4 user, Italian made).
Ps : He’ll kill you after the final boss battle if you didn’t kill him.