Topic summary
Judicial duel

Extracted from the Wikipedia article Trial by combat.
Holy Roman Empire
Otto the Great in 967 expressly sanctioned the practice of Germanic tribal law even if it did not figure in the more "imperial" Roman law. The celebrated case of Gero, Count of Alsleben, is a good example. The Fourth Lateran Council of 1215 deprecated judicial duels, and Pope Honorius III in 1216 asked the Teutonic Order to cease its imposition of judicial duels on their newly converted subjects in Livonia. For the following three centuries, there was latent tension between the traditional regional laws and Roman law.