NGV Stambomenverzameling
Gezin: Petrus Joannes Claessens / Maria Elisabetha Claessens (F860)
Petrus Joannes Claessens (1714-1774) 
|
Maria Janssens (1713-1794) |
| Cornelius Claessens (1738- ) |
| Joannes Baptiste Claessens (1740- ) |
Joannes Jacobus Claessens (1744- )  |
| Adrianus Claessens (1747-1789) |
| Franciscus Claessens (1749-1749) |
| Maria Catharina Claessens (1750-1827) |
| Joanna Cornelia Claessens (1753-1812) |
| Leonardus Claessens (1755-1790) |
| Adamus Claessens (1759- ) |
| Maria Elisabetha Claessens (1744-1794) |
| Petrus Joannes Claessens (1742-1795)
|
| Anna Maria Claessens (1766- ) |
| Petronella Claessens (1767-1768) |
| Joanna Catharina Claessens (1769- ) |
| Joannes Franciscus Claessens (1771- ) |
| Petronella Cornelia Claessens (1773-1832) |
| Elisabetha Claessens (1775- ) |
| Maria Anna Claessens (1777-1777) |
| Maria Anna Claessens (1778-1785) |
| Bernardus Claessens (1781-1785) |
| Anna Cornelia Claessens (1785- ) |