The Sovrans: Trial by Combat

The right to Trial by Combat is the right to settle accusations in the absence of witnesses or a confession. 

Under Trial by Combat, two parties in dispute may fight in single combat; with the winner of the fight being proclaimed to be in the right.

In Westrun the orders of chivalry have seen to official codification of such rules. They generally do not apply outside of that Land and when taken to by common people.

Trial by Combat can only be invoked by individuals of the same social class. Kings upon kings, nobles upon nobles, commoners upon commoners. No one has the right to duel someone above their station.