Chronicles of Ascension
The Redbrands are a group of bandits and brigands that settled in the frontier town of Phandalin in around 1488 DR. With no local lord or powerful authority within the small town, the Redbrands were able to harass the farmers and prospectors. Many were afraid of standing up to the bandit group, including the townsmaster, the closest thing to local authority Phandalin has.
Led by a mysterious figure known as Glasstaff they took over all operations in the small town. They took up residence under the old Manor in town and ran their raids from there for two months.
Thankfully they were thwarted by a group of heros. Glasstaff, who they discovered was actually a traitor wizard named Iarno Albrek under orders from The Black Spider, was forced to flee.