| Father | Capt Pedro Sanchez de Inigo II (1695 - 1764) |
| Mother | Dona Micaela Quintana (1708 - 1771) |
| Sibling | Francisco Xavier Sanchez ( - ) |
| Sibling | Barbara Sanchez ( - 1742) |
| Sibling | Julian Sanchez ( - 1742) |
| Sibling | Miguel Sanchez ( - 1742) |
| Sibling | Pedro Sanchez ( - 1742) |
| Sibling | Maria Margarita Sanchez (1726 - 1810) |
| Sibling | Antonia Sanchez (1727 - ) |
| Sibling | Antonia Sanchez (1727 - 1727) |
| Sibling | Maria Teresa Sanchez (1728 - 1790) |
| Sibling | Joseph Antonio Sanchez (1729 - 1749) |
| Sibling | Maria Sanchez (1731 - ) |
| Sibling | Bernardo Sanchez (1733 - 1742) |
