Biography
Mechthild von Sponheim-Starkenburg was born circa 1345 to Johann III. von Sponheim-Starkenburg (c1315-1398) and Mechthild von der Pfalz (1312-1375) and died circa 1407 of unspecified causes. She married Rudolf VI. von Baden-Baden (c1346-1372) 1356 JL .
Mechtild and her sister Loretta became the co-heirs for the county of Sponheim, when the male line of the family died out.
Children
| Name | Birth | Death | Joined with |
| Bernhard I. von Baden-Baden (1364-1431) | 1364 | 5 April 1431 | Margarete von Hohenberg (?-1419) Anna von Oettingen (c1380-1436) |
| Rudolf VII. von Baden-Baden (?-1391) | |||
| Mechthild von Baden-Baden (c1352-1425) | 1352 | 1425 Schleusingen | Heinrich XI. von Henneberg-Schleusingen (c1350-1405) |
Footnotes (including sources)