Family: Johannes Jakob Mertz / Theresia Fröhlich (F11538)
m. 22 Nov 1779Sebastian Mertz (1722-1793) 
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Maria Ottilia Willig (1724-1779)
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| Maria Magdalena Mertz (1748-1768) |
| Katharina Mertz (1749-1766) |
Joseph Mertz (1751-1819)  |
| Ottilia Mertz (1757-1786) |
| Georg Fröhlich (1720-1771)
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| Barbara Trapp (1722-1775)
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| Adam Fröhlich (1745-1800) |
| Maria Anna Fröhlich (1755-1825) |
| Ludwig Fröhlich (1761-1845) |
| Johannes Jakob Mertz (1754-1829)
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| Theresia Fröhlich (1758-1784)
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| Joseph Mertz (1780-1789) |
| Franz Anton Mertz (1782-1841) |
| Johannes Jakob Mertz (1784-1785) |