| 1. de Beaumont, Sir Yves II |
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| B: |
975 |
| P: |
Beaumont-sur-Oise, Val-d'Oise, Île-de-France, France |
| D: |
22 May 1059 |
| P: |
Beaumont-sur-Oise, Val-d'Oise, Île-de-France, France |
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| 2. de Beaumont, Ivo I |
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| B: |
940 |
| P: |
Ham, Somme, Picardie, France |
| M: |
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| D: |
1002 |
| P: |
Normandy, France |
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| 11. |
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| 3. de Vermandois, Gisela |
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| B: |
955 |
| P: |
Vermandois (Historical), Picardie, France |
| D: |
12 Mar 984 |
| P: |
Anjou, Isère, Rhône-Alpes, France |
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| 12. de Vermandois, Hérbert II |
=> |
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| B: |
880 |
| P: |
Vermandois (Historical), Picardie, France |
| M: |
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| D: |
23 Feb 943 |
| P: |
Saint-Quentin, Aisne, Picardie, France |
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| 14. de Lorraine, Gilbert |
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| B: |
880 |
| P: |
Rheims, Marne, Champagne-Ardenne, France |
| M: |
928 |
| P: |
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| D: |
2 Oct 939 |
| P: |
Andernach, Mayen-Koblenz, Rheinland-Pfalz, Germany |
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975 - 1059 (84 years)