Mathilde of Sponheim 1333 - 1409 (d. 1410) Parents Mechthild of Sponheim-Starkenburg Johann III, Count of Sponheim-Starkenburg Children Mathilde of Baden Rudolf VII, Margrave of Baden-Baden Bernard I, Margrave of Baden-Baden Siblings Johann IV. Loretta, Gräfin von Sponheim-Starkenburg Partners Rudolf VI, Margrave of Baden