SignificanceHere we present direct archaeological evidence in the form of human remains of a large-scale battle in Northern Europe in the first century AD, in the wake of the northern expansion of the Roman Empire. The deposited population is estimated to 380 individuals. The relative absence of traces of healed sharp force trauma suggests that they had relatively little previous battle experience. Evidence of the systematic treatment of the human corpses, including stripping of bodies, disarticulation of bones, crushing of crania, and arrangement of body parts, points to a new form of postbattle activities, with implications for the interpretation of contemporary battlefields and later ritual traditions with regard to depositions of the spoils of war.