Commune/Paroisse : Sciez [Haute-Savoie] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | COCHOIS | 1646 | - | 1 |
| 2. | COHENDOZ | 1763 | 1 | - |
| 3. | COLLET | 1764 | 1 | - |
| 4. | COLLIARD | 1829 | - | 1 |
| 5. | COLLOD | 1697 | - | 1 |
| 6. | COLY | 1726 | - | 1 |
| 7. | COMBAZ | 1738 | - | 1 |
| 8. | COMPAGNON | 1784-1860 | 4 | 6 |
| 9. | COMTE | 1736-1867 | 1 | 1 |
| 10. | CONDEVAUD | 1834 | 1 | - |
| 11. | CONDEVAUX | 1764-1844 | 2 | 2 |
| 12. | CORAJOD | 1865 | 1 | - |
| 13. | CORDIER | 1769 | - | 1 |
| 14. | COUDURIER | 1779 | 1 | - |
| 15. | COURAJOD | 1765 | 1 | 1 |
| 16. | COURAJOUD | 1865 | 1 | - |
| 17. | COURT | 1813-1834 | 1 | 1 |
| 18. | COUTHY | 1806 | - | 1 |
| 19. | COUTY | 1769-1864 | 7 | 2 |