She is married to Frans Ferdinand van Lannoy Graaf van Annapes.
They got married on November 4, 1756 at Annequin, Nord-Pas-de-Calais, she was 16 years old.
Child(ren):
Bron: http://genealogics.org/getperson.php?personID=I00192313&tree=LEO
en: http://gw5.geneanet.org/wailly?lang=nl;p=marie+francoise+constance+antoinette;n=d+assignies
The data shown has no sources.