Mariages
Commune/Paroisse : Opont [Luxembourg] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | Cabrisis | 1781 | 1 | - |
| 2. | Caleph | 1747-1779 | 2 | - |
| 3. | Campinet | 1665-1683 | - | 2 |
| 4. | Carraux | 1768-1790 | 1 | 1 |
| 5. | Carrot | 1764-1766 | 2 | - |
| 6. | Cercelet | 1775-1849 | 3 | 1 |
| 7. | Cerfour | 1648 | 1 | - |
| 8. | Chaidron | 1776-1778 | 2 | - |
| 9. | Charles | 1719 | 1 | - |
| 10. | Charlier | 1693 | - | 1 |
| 11. | Chevet | 1691-1696 | - | 2 |
| 12. | Clarinval | 1784-1897 | 2 | - |
| 13. | Claude | 1704 | 1 | - |
| 14. | Cola | 1857 | - | 1 |
| 15. | Colas | 1849 | - | 1 |
| 16. | Collar | 1804 | 1 | - |
| 17. | Collard | 1831-1900 | 3 | 5 |
| 18. | Collart | 1642-1842 | 19 | 27 |
| 19. | Collignon | 1651 | - | 1 |
| 20. | Collin | 1734-1736 | - | 2 |
| 21. | Collot | 1644 | - | 1 |
| 22. | Compere | 1757-1763 | - | 3 |
| 23. | Copinne | 1719-1784 | 3 | - |
| 24. | Cousinet | 1683 | - | 1 |