The mother of XXX is whom?
Prince Karl Johann of Liechtenstein
Prince Karl Johann of Liechtenstein (Karl Borromäus Johann Nepomuk Anton; Vienna, 14 June 1803 - Ischl, 12 October 1871) was the third son of Johann I Joseph, Prince of Liechtenstein (1802--1887) and wife Landgravine Josepha of Fürstenberg-Weitra, nephew of Aloys I, brother of Aloys II and uncle of Johann II and Franz I.
Landgravine Josepha of Fürstenberg-Weitra