He is married to Louise Antoinette Pauline Candide Felicia van Brancas Gravin van Lauraguais.
They got married on January 19, 1773 at Parijs, he was 22 years old.
Child(ren):
17-08-1778 - 07-03-1820 Duc d'Arenberg (6de)
1808 - 07-03-1820 Duc d'Aerschot
1808 - 07-03-1820 Herzog von Meppen (1ste)
1808 - 07-03-1820 Fürst von Recklinghausen (1ste)
1808 - 07-03-1820 Comte de l'Empire
http://gw4.geneanet.org/index.php3?b=oau⟨=nl;pz=luis+alfonso;nz=de+borbon;ocz=0;p=louis+engelbert;n=d+arenberg
Bron: http://genealogics.org/getperson.php?personID=I00009915&tree=LEO
en: http://genealogy.euweb.cz/ligne/ligne5.html
en: http://www.dinastias.com/cgi-bin/gwd.exe?b=dinastias;lang=en;i=40192
The data shown has no sources.