 During the upheaval, sometime between 483–501, Gundobad began to set forth the "Lex Gundobada" (see below), issuing roughly the first half, which drew upon the "Lex Visigothorum".Following his consolidation of power, between 501 and his death in 516, Gundobad issued the second half of his law, which was more originally Burgundian.The Burgundians were extending their power over southeastern Gaul—that is, northern Italy, western Switzerland, and southeastern France.