| | Etienne Marie Joseph Louis Gérard de Streel 1905–1975 Marina Nicolaevna Corvin Kroukowsky 1913–1975 | | | | Paul Emmanuel Marie Joseph de Streel 1866–1944 Jeanne Marie Nelly Vander Straeten 1868–1914 | | | | Edouard Alexandre Streel – Mathilde François Thérèse Van Hoegaerden – |
| | | Jean Baptiste Vander Straeten – |
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| | | Nicolas Nicolaevitch Corvin Kroukowsky – Alexandra Grigorievna Kolpakowsky – |
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