The Osterby Man. Only his decapitated head was found, wrapped in a deerskin cape. He was likely killed by a blow to his left temple before he was decapitated. His hair, reddened by chemicals in the peat, is tied in an elaborate hairstyle called a Swabian knot. The Roman historian Tacitus, who lived in Osterby Man’s era, describes the hairstyle as typical of the Suebi tribe of Germany.