Krentz was a member of the Xanathar's Guild, he also lead a tiny group of bandits who he would parade around town with.
History
One day Krentz visited The Yawning Portal with his goons where he noticed Yagra Strongfist sitting at a table. Knowing Yagra was part of The Black Network, Krentz starting picking a fight with her. Yagra managed to know Krentz to the floor after which his friends started to jump on her. Krentz and his buddies fled the scene once a Troll emerged from the pit in the middle of the tavern.
Later that day The Trollskull Crushers ran into Krentz during their search for Floon Blagmaar. Together with a Duergar he was anxiously trying to block a door for some unknown reason. A fight broke out between him, the Duergar, and the Party as he met his end.