King Gundobad revives trial by combat as a solution to justice, establishing, in 501, judicial duel or trial by battle, the earliest form of the duel as a formal method of settling an argument or point of honor.

Gundobad is the likely promulgator of the Lex Burgundionum, a tribal code of the Burgundians, concerning marriage and inheritance as well as regulating weregild and other penalties (approximate date).

Interaction between Burgundians is treated separately from interaction between Burgundians and Gallo-Romans.

The oldest of the fourteen surviving manuscripts of the text dates to the ninth century, but the code's institution is ascribed to Gundobad , with a possible revision by his successor Sigismund.