Commune/Paroisse : Ortho [Luxembourg]
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | COIBION | 1842-1908 | 11 |
| 2. | COLINET | 1842 | 1 |
| 3. | COLINT | 1835 | 1 |
| 4. | COLLA | 1804-1871 | 5 |
| 5. | COLLARD | 1798-1909 | 44 |
| 6. | COLLAS | 1806-1894 | 24 |
| 7. | COLLET | 1873-1904 | 4 |
| 8. | COLLETTE | 1800-1859 | 13 |
| 9. | COLLIGNON | 1799-1888 | 7 |
| 10. | COLLIN | 1844-1900 | 11 |
| 11. | COLLINET | 1837-1910 | 29 |
| 12. | CORBAY | 1840-1879 | 5 |
| 13. | CORNET | 1832-1904 | 23 |
| 14. | CORNETTE | 1895-1910 | 8 |