(1) He is married to Maria Rose Francesca Tascher de La Pagerie.
They got married on January 31, 1808 at Parijs, he was 22 years old.
divorced on 29 August 1816
mariage déclaré nul canoniquement le 27 mars 1817
http://www.dinastias.com/cgi-bin/gwd.exe?b=dinastias;lang=en;i=40355
The couple were divorced on August 29, 1816.
(2) He is married to Ludmilla Sidonia Anthonia Auguste Prinses van Lobkowicz.
They got married on January 26, 1819 at Horin (Marschendorf), Centraal-Bohemen, Tsjechië, he was 33 years old.
Child(ren):
07-03-1820 - 28-02-1861 Duc d'Arenberg (7de)
07-03-1820 - 28-02-1861 Duc d'Aerschot (13de)
07-03-1820 - 28-02-1861 Herzog von Meppen (2de)
07-03-1820 - 28-02-1861 Fürst von Recklinghausen (2de)
Duc de Croÿ
Prince du Saint-Empire
Comte de la Marck
http://gw4.geneanet.org/index.php3?b=oau⟨=nl;pz=luis+alfonso;nz=de+borbon;ocz=0;p=prosper+louis;n=d+arenberg
Bron: http://genealogics.org/getperson.php?personID=I00015220&tree=LEO
en: http://www.dinastias.com/cgi-bin/gwd.exe?b=dinastias;lang=en;i=40355
en: http://www.geneall.net/W/per_page.php?id=5456
en: http://genealogy.euweb.cz/ligne/ligne5.html#PL
The data shown has no sources.