| | Kaspar Josef Giani 1830–1896 Maria Katharina Josephine Hubertine Merckelbach 1832–1895 | | | | Andreas Cajetan Karl Josef Giani 1794–1859 Elisabeth Krohe 1802–1871 | | | | Maria Guiseppe Maragoli 1770– |
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| | | Matthias Johannes Merckelbach 1792–1838 Maria Carolina Josepha Claessen 1802–1882 | | | | Simon Merckelbach 1751–1815 Maria Helena Dreßen 1747–1783 Maria Elisabeth Schervier 1766–1837 | | | | Adolf Merckelbach 1720–1790 Johanna Pessers 1707–1741 Maria Anna Thielen 1724–1764 | | |
| | | Johannes Gerhard Schervier 1743–1826 Maria Elisabeth Thielen 1742–1817 | | |
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| | | Johannes Christian Josef Claessen 1752–1811 Maria Josephine Kamps 1762–1841 | | | | Johannes Matthias Claessen 1723–1768 Maria Agnes Cremers 1732–1763 | | |
| | | Maria Anna Janssen 1735–1798 | | |
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