He married in Budapest on 6 September 1906 Countess Mária Gabriella Andrássy de Csíkszentkirály et Krasznahorka, and had 4 sons:
Prince Alfred Géza Johann Dionys Maria Josef, married at Schloss Horin on 16 April 1932 Ludmila Prinzessin von Lobkowicz, and had issue:
* Princess Maria Christina Anna Eleonore Henriette, married in Hollenegg on 2 July 1960 and divorced in 1973 Roland de Roys de Lédignan Saint Michel, and had issue:
** Marie Caroline de Roys de Ledignan Saint Michel
** René François de Roys de Ledignan Saint Michel
** Louis Charles de Roys de Ledignan Saint Michel, unmarried and without issue
* Prince Franz Géza Johannes Georg Thaddäus Konrad Maria, married in Osteria Grande, near Bologna, on 14 June 1969 Laura Malvezzi Campeggi, and had issue:
** Princess Laurentia
** Prince Alfred Paolo, married civilly in Vaduz on 27 May 2005 and religiously in Castelvecchio on 11 June 2005 Alice Stori Deserti, and had issue:
*** Princess Emilia Laura
*** Prince Franz Cosimo
*** Princess Giulia Marina
** Prince Lukas Wolfgang, married civilly in Vaduz on 6 October 2006 and religiously in Beaumont, Haute-Savoie on 21 October 2006 Nathalie Geneviève Etchart, and had issue:
*** Princess Nora Manureva
*** Princess Lucie Louise
** Princess Livia Margherita, married civilly in Vaduz on 6 June 2012 Richard Turner
* Prince Friedrich Emanuel Konrad Thaddäus Maria, married in Hollenegg on 8 January 1972 Annemarie Ortner, and had issue:
** Prince Emanuel Friedrich Eugen Nikolaus, married in Regensburg on 7 August 2007 Sonja Maria Monschein
* Prince Anton Florian Johannes Constantin Konrad Thaddäus, married in Sankt Stefan im Gailtal on 29 June 1968 Rosmarie Freiin Dreihann-Holenia von Sulzberg am Steinhof, and had issue:
** Princess Ludmilla Stefanie, married civilly in Vaduz on 7 April 1995 and religiously in Sankt Stefan im Gailtal on 15 July 1995 Christoph Andreas Georg Graf Calice, and had issue:
*** Maria Assunta Stefanie Johanna Ludmila Gräfin Calice
*** Pius Florian Ferdinand Heinrich Anton Maria Graf Calice
*** Christoph Matthias Franz Alfred Maria Graf Calice
Prince Johannes Franz de Paula Gabriel Ildefons Felix Klemens Maria Joseph, married in Mariaschein, Bohemia, on 16 November 1936 Karoline Gräfin von Ledebur-Wicheln, and had issue:
* Princess Maria Eleonore Elisabeth Johanna, unmarried and without issue
* Prince Eugen Hartmann Johannes Franz Maria, married in Ebenthal on 27 July 1968 Maria Theresia Gräfin von Goëss, and had issue:
** Prince Johannes Leopold Petrus Maria, married civilly in Vaduz on 12 April 2001 and religiously in Vienna on 12 May 2001 Kinga Gräfin Károlyi de Nagy-Károly
** Princess Anna Theodora Maria, married in Moosburg civilly on 10 June 1993 and religiously on 12 June 1993 her cousin Alexander Graf Kottulinsky, and had issue:
* Prince Albrecht Johannes Géza Augustinus Wilhelm Maria, who took the title of Baron von Landskron on 28 January 1971, married firstly in Vaduz on 3 September 1966 and divorced in 1971 Tamara Nyman, created Baroness von Landskron in 1966, and had issue, and married secondly in Las Vegas, Clark County, Nevada, 24 July 1974 Marie-Thérèse Tullio, and had issue:
** Baroness Tatjana Helene von Landskron, married in Speicher bei St. Gallen in 1989 Bruno Roland Thurnherr-Landskron, and had issue:
*** Timothy von Landskron
*** Tara Alina von Landskron
** Baron Albrecht Johannes Christoph von Landskron, unmarried and without issue
** Baroness Lorenza von Landskron, married in Paris civilly on 29 February 1996 and religiously on 2 March 1996 and divorced or separated Antonio del Balzo di Presenzano and had issue by Francesco Trapani :
*** Vittoria del Balzo di Presenzano
*** Allegra Trapani
* Princess Barbara Eleonora Marie, married in Paris on 2 November 1973 as his second wife Alexander, Prince of Yugoslavia, and had issue
