| Alberic II Count of Dammartin (~1148 - 1200) |
Guillaume II Talvas of Ponthieu C. of Ponthieu & Montreuil (1179 - 1221) |
| Maud de Ponthieu or de Clermont (1138 - 1200) |
Alice of France Princess of France (1160 - >1218) |
| Simon de Dammartin C. of Ponthieu, Montreuil & Aumale | Marie of Ponthieu Css. of Ponthieu & Montreuil |
| b. abt 1180, Of Spain d. 21 Sep 1239, Castile, Spain bur. occ. cen. im. . ud. |
b. abt 1196, guess - Ponthieu, France d. 1251, Spain bur. occ. cen. im. . ud. |
| Jeanne (or Juana) de Dammartin Countess of Ponthieu, etc. |