Mechthild is the German form of Matilda — Old German maht (might) and hild (battle), "mighty in battle." Mechthild of Magdeburg (c. 1207-1282) was the German Beguine mystic whose Flowing Light of the Godhead is one of the masterpieces of medieval Christian mysticism.
Mechthild of Hackeborn (1240-1298) was her younger Cistercian counterpart.
Mechthild reduces to six — the number of German mystic.