| | 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 | | |
| | Anne Françoise Joseph Rousel 1755–1803 Jean Baptiste Joseph de Lannoy 1758–1786 | | |
| | Pierre Joseph Rousel 1728–1780 Marie Joseph N.N. 1730–1780 |
