| Person | Spouse | Relationship | Most recent common ancestor(s) |
|---|---|---|---|
| Mathieu d'Alsace | Marie de Boulogne | 3rd cousins |
Boudouin V de Flandre & Adèle Capet |
| Person | Spouse | Relationship | Most recent common ancestor(s) |
|---|---|---|---|
| Mathieu d'Alsace | Marie de Boulogne | 3rd cousins |
Boudouin V de Flandre & Adèle Capet |