Franz Joseph Maria Ludwig von Hohenzollern-Sigmaringen was born 30 August 1891 in Heilgendamm, Bad Doberan, Rostock District, Mecklenburg-Vorpommern, Germany to Wilhelm von Hohenzollern (1864-1927) and Maria Teresa di Borbone delle Due Sicilie (1867-1909) and died 3 April 1964 Tübingen, Tübingen District, Baden-Württemberg, Germany of unspecified causes. He married Maria Alix Wettin (1901-1990) 25 May 1921 in Szczodre, Wrocław County, Lower Silesian Voivodeship, Poland.
Children
| Name | Birth | Death | Joined with |
| Karl Anton von Hohenzollern (1922-1993) | 28 January 1922 Munich, Bavaria, Germany | 3 November 1993 Hechingen, Zollernalp District, Baden-Württemberg, Germany | Alexandra Afif (1919-1996) |
| Meinrad von Hohenzollern (1925-2009) | 17 January 1925 Sigmaringen, Sigmaringen District, Baden-Württemberg, Germany | 9 September 2009 Murnau am Staffelsee, Garmisch-Partenkirchen District, Bavaria, Germany | Edina von Kap-Herr (1938-) |
| Maria Margarethe von Hohenzollern (1928-2006) | 2 January 1928 Sigmaringen, Sigmaringen District, Baden-Württemberg, Germany | 4 August 2006 Hechingen, Zollernalb District, Baden-Württemberg, Germany | Karl Gregor von Mecklenburg (1933-) |
| Emanuel von Hohenzollern (1929-1999) | 23 February 1929 Munich, Bavaria, Germany | 8 February 1999 Hechingen, Zollernalb District, Baden-Württemberg, Germany | Katharina von Sachsen-Weimar (1943-) |
Siblings
| Name | Birth | Death | Joined with |
| Auguste von Hohenzollern (1890-1966) | 19 August 1890 Potsdam, Brandenburg, Germany | 29 August 1966 Eigeltingen, Konstanz District, Baden-Württemberg, Germany | Manuel II of Portugal (1889-1932) |
| Friedrich Viktor von Hohenzollern (1891-1965) | 30 August 1891 Heilgendamm, Bad Doberan, Rostock District, Mecklenburg-Vorpommern, Germany | 6 February 1965 Krauchenwies, Sigmaringen District, Baden-Württemberg, Germany | Margarete von Sachsen (1900-1962) |
| Franz Joseph von Hohenzollern (1891-1964) | 30 August 1891 Heilgendamm, Bad Doberan, Rostock District, Mecklenburg-Vorpommern, Germany | 3 April 1964 Tübingen, Tübingen District, Baden-Württemberg, Germany | Maria Alix Wettin (1901-1990) |