| Person | Spouse | Relationship | Most recent common ancestor(s) |
|---|---|---|---|
| Guillaume Ier Clito de Normandie | Sibylle d'Anjou | 4th cousins once removed | Richard Ier Normandie & Gunnor de Crépon | Giovanna del Monferrato | 4th cousins |
Guillaume III de Normandie | Mathilde d'Anjou | 4th cousins once removed |
