Commune/Paroisse : Castelnau-Rivière-Basse [Hautes-Pyrénées] 
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | CADREY | 1781-1787 | 3 |
| 2. | CARDES | 1785 | 1 |
| 3. | CARRERE | 1786 | 1 |
| 4. | CASALA | 1773 | 1 |
| 5. | CASSAET | 1743-1774 | 4 |
| 6. | CASTAIGNON | 1778 | 1 |
| 7. | CASTAING | 1738-1788 | 12 |
| 8. | CASTILLON | 1771-1786 | 6 |
| 9. | CAUZETTE | 1776 | 1 |
| 10. | CAZALA | 1770 | 1 |
| 11. | CAZENAVE | 1771-1777 | 4 |
| 12. | CAZIEUX (CASIEUX) | 1737-1786 | 11 |
| 13. | CLARAC | 1737-1785 | 16 |
| 14. | CLAVERIE | 1771 | 1 |
| 15. | COLOUMÉS | 1784-1789 | 3 |
| 16. | CORDES | 1791 | 1 |
