Kampfringen or Ringen is the German language term for grappling (wrestling). In the context of the German school of historical European martial arts during the Late Middle
Ages and the German Renaissance, ringen refers to unarmed combat in general, including grappling techniques used as part of swordsmanship.
The German tradition has records of a number of master-Ringer of the 15th to 16th centuries specializing in unarmed combat, such as Ott Jud.
Unarmed combat was divided in two categories, sportive grappling or geselliges ringen and serious unarmed combat or kampfringen (where kampf is the Early Modern German term for "duel").