Commune/Paroisse : Opont [Luxembourg]
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | FALMAGNE | 1895 | 1 |
| 2. | FANIF | 1826 | 1 |
| 3. | FERET | 1894 | 1 |
| 4. | FLORENT | 1854-1861 | 2 |
| 5. | FLOYON | 1826 | 1 |
| 6. | FOCANT | 1895-1912 | 2 |
| 7. | FORTHMANN | 1917 | 1 |
| 8. | FOULON | 1868-1914 | 9 |
| 9. | FRENSBERG | 1911 | 1 |
| 10. | FRERON | 1821 | 1 |
| 11. | FRICKE | 1901 | 1 |
| 12. | FRICOT | 1909 | 1 |
| 13. | FRUHBEIS | 1900 | 1 |