Game of Thrones?...

"It does not matter why," the leader replied. "By our code, you are now the Malevolent Lord. The Shadow Court is yours to command."

Adrian stared at the weapon in the kneeling soldier's hands, its dark blade glinting faintly in the dim light of the chamber. Marcus's weapon—now his, if the laws of the Shadow Court were to be believed. 

The whispers of respect from the other members of the Shadow Court filled his ears, but his thoughts were a swirl of tiredness, uncertainty, and defiance.

"I don't want it," he said sharply, taking a step back. "Find someone else to take the position. I have no place here."

The leader of the group looked up with an unreadable expression. "That is not how it works, Malevolent Lord. The title and power can only pass to one who defeats the previous Lord. If you do not accept it, someone must challenge you for it. To the death."