Commune/Paroisse : Loisin [Haute-Savoie] 
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | COHENDOZ | 1699-1834 | 13 |
| 2. | COHINCHE | 1845 | 1 |
| 3. | COLLOMB | 1758-1860 | 34 |
| 4. | COLLOMD | 1805-1811 | 5 |
| 5. | COLLOMG | 1778 | 1 |
| 6. | COLLON | 1752 | 1 |
| 7. | COMTE | 1754-1789 | 6 |
| 8. | CONDEVEAUX | 1850-1853 | 2 |
| 9. | CONTE | 1696-1767 | 6 |
| 10. | CORNET | 1696 | 1 |
| 11. | COURT | 1649-1840 | 3 |
| 12. | COUTHY | 1816-1817 | 2 |
| 13. | COUTI | 1757-1773 | 13 |
| 14. | COUTTI | 1698-1775 | 10 |
| 15. | COUTTY | 1692-1809 | 12 |
| 16. | COUTY | 1695-1860 | 54 |