Mariages
Commune/Paroisse : Opont [Luxembourg] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | Jacob | 1709-1789 | 4 | 4 |
| 2. | Jacque | 1759 | 1 | - |
| 3. | Jacquemin | 1657-1803 | 6 | 4 |
| 4. | Jacques | 1648-1787 | 2 | 4 |
| 5. | Jacquet | 1735-1783 | 2 | 3 |
| 6. | Jadot | 1730-1775 | 2 | 3 |
| 7. | Janson | 1645-1803 | 8 | 9 |
| 8. | Jasnetha | 1720 | 1 | - |
| 9. | Jeanjean | 1643 | - | 1 |
| 10. | Jeanson | 1644 | 1 | - |
| 11. | Jeradin | 1704-1770 | 2 | - |
| 12. | Jerôme | 1761-1762 | 2 | - |
| 13. | Jusnot | 1750 | 1 | - |