Maria Johanna von Colloredo-Mannsfeld
- Born on July 25, 1923 in Vienna
- Deceased on August 28, 2010, at the age of 87 years
Parents
- Rudolf von Colloredo-Mannsfeld (1876 - 1948)
- Johanna de Rohan (1890 - 1961)
Family
- Married on April 19, 1969 in Sierndorf, with Anton von Aretin (1918 - 1981)