- Born on May 22, 1849
- Deceased on January 9, 1935 in Vienna, at the age of 85 years
Parents
- Maximilian de La Fontaine und d'Harnoncourt-Unverzagt (1820 - 1867)
- Aloysia Locatelli (1829 - 1869)
Family
- Married on June 5, 1869 in Vienna, with Johann Maximilian zu Hardegg auf Glatz und im Machlande (1842 - 1919), issuing
Johann Maximilian (1870 - 1945)- Johann Eugen (1873 - 1936)
- Alice (1879 - 1962)