Mahaut de Dampierre was born 1196 to Guy II de Dampierre (1155-1216) and Mathilde I de Bourbon (c1165-1218) and died 1223 of unspecified causes. She married Guigues IV de Forez (c1199-1241) 1205 JL .
Children
| Name | Birth | Death | Joined with |
| Guigues V de Forez (c1210-1259) | |||
| Renaud I de Forez (c1215-1270) | 1215 | 13 November 1270 | Isabelle de Beaujeu (1225-1297) |