Commune/Paroisse : Seyssel [Haute-Savoie] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | COCHARD | 1851 | - | 1 |
| 2. | COCHAT | 1856 | - | 1 |
| 3. | COCHET | 1802-1812 | 2 | 1 |
| 4. | COEN | 1880-1882 | - | 2 |
| 5. | COGNAT | 1754 | 1 | - |
| 6. | COGNE | 1878 | - | 1 |
| 7. | COHENDOZ | 1873 | 1 | - |
| 8. | COISSARD | 1816-1882 | 2 | 1 |
| 9. | COMBE | 1882 | 1 | - |
| 10. | COMBEPINE | 1765 | - | 1 |
| 11. | COMBET | 1740 | 1 | - |
| 12. | COMPERE | 1754-1846 | 3 | - |
| 13. | COMTE | 1756-1788 | - | 5 |
| 14. | CONDET | 1745-1747 | - | 2 |
| 15. | CONSTANTIN | 1754 | - | 1 |
| 16. | CONTANT | 1801 | 1 | - |
| 17. | CONTE | 1743-1794 | 3 | 5 |
| 18. | COPEZ (COPPEE) | 1741 | 1 | - |
| 19. | COPPEE | 1752 | 1 | - |
| 20. | CORAJOD | 1878 | - | 1 |
| 21. | CORBIER | 1754 | - | 1 |
| 22. | CORSIN | 1747-1823 | 3 | 4 |
| 23. | CORTINAZ | 1823 | - | 1 |
| 24. | COSTE | 1813 | 1 | - |
| 25. | COTTAREL | 1827-1840 | 2 | - |
| 26. | COTTIN | 1748-1794 | 2 | 1 |
| 27. | COURTOIS | 1853-1879 | 2 | 1 |