Where is Margesh Blackblood?

From the back of the book: Margesh Blackblood and his bandits have been terrorizing the countryside. Sir Browyrd is offering 100sp to who can ever deliver the villain's head. The knight and his men have searched for the bandit king, but have found nothing. To be successful the party will need coin and the ability to crack skulls to get their information. But, when dealing with bandits, you can never be sure of the truth even as you hold a knife to their throat. Where is Margesh Blackblood?