 Many of these forts and camps were reoccupied during the reign of emperor Septimius Severus about a century later.In the summer of 84 Agricola defeated the massed armies of the Caledonians, possibly led by Calgacus, at the battle of Mons Graupius.The area around Raedykes including nearby Kempstone Hill has been advanced by Gabriel Jacques Surenne and other scholars as the likely location for the battle in AD 83 or 84.