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| Name | Total | Name | Total | Name | Total | Name | Total | Name | Total |
|---|---|---|---|---|---|---|---|---|---|
| Ingier | 4 | Ivensdatter | 1 | Ivarson | 1 | Inn-Nordtal, Von | 2 | - | - |
| Ingvardsdatter | 1 | Isachsdatter | 1 | Ivrea, De | 7 | Ingjaldsson | 3 | - | - |
| Iversdatter | 1 | Irmgard | 1 | Isle-Bouchard, L' | 4 | Italy, De | 1 | - | - |
| Itter, Von | 1 | Ireland, Of | 3 | Istrien-Weimer, Von | 1 | Ireland | 2 | - | - |