| | Henry Joseph de Lannoy 1844–1901 Adele Deschamps 1845–1892 | | |
| | Floris Joseph de Lannoy 1811–1869 Anne Sylvie Lecroart 1808–1901 | | | | Jean François Joseph de Lannoy 1785–1866 Julie Desiree Sylvie Joseph Hallez 1780–1843 | | | | Jean Baptiste Joseph de Lannoy 1758–1786 Anne Françoise Joseph Rousel 1755–1803 | | | | Jean Baptiste de Lannoy 1730–1812 Anne Catherine Ringer 1735–1785 | | | | Guillaume Joseph de Lannoy 1685–1743 Marie Claire Six 1697–1763 | | |
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| | | Pierre Joseph Rousel 1728–1780 Marie Joseph N.N. 1730–1780 |
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