| | Joseph François Marie François Xavier Iweins 1782–1834 Sophie Marie Anne Cailleau 1781–1849 | | | | Pierre Louis Iweins 1741–1789 Marie Anne Domitile Spielman – | | | | Pierre Joseph Iweins 1701–1777 | | | | Martine Louise Colpaert 1679– | | |
| | | Catherine Thérèse de Langhe – |
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| | | Isabelle Claire Eléonore Goldtschalck – |
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| | | Anne Thérèse Benoite de Rubberecht – |
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