| Duke Robert "Fortis" of France |
Count Herbert I of Vermandois |
| Princess Adbelahide Adelheid of the Holy Roman Empire |
Princess of France |
| King Robert I of France | Beatrice De Vermandois |
| bd. occ. edu. rel. dd. brd. add. ali. |
bd. occ. edu. rel. dd. brd. add. ali. |
| Duke Hughes Magnus of France Princess Hildebrante of France |