Mariette Hoyos
- Born on April 20, 1883 in Vienna
- Deceased on April 26, 1967, at the age of 84 years
Parents
- Ladislaus Hoyos (1834 - 1901)
- Franziska Seraphika von Herberstein (1850 - 1920)
Family
- Married on October 18, 1902, with Alfons von Geldern-Egmont (1872 - 1964), issuing
- Therese (1911 - 2000)