This small meeting room with beautiful light in the main building is named after the Duke of Brunswick. The Duke was military governor of Den Bosch between 1751 and 1784. His nickname was “the fat duke”; he probably suffered from obesity. A city drawing from the Utrecht Archives adorns a wall in this room. This wall can be removed to create the larger Dukes hall. The windows on the side allow daylight to fall into the room, which – it is said – would stimulate the work ethic.