At university, when she was 18, she met Prince Egon von Fürstenberg, the elder son of Prince Tassilo zu Fürstenberg, a German Roman Catholic prince, and his first wife, Clara Agnelli, an heiress to the Fiat automotive fortune and member of the Italian nobility.
Married in 1969, the couple had two children, Alexander and Tatiana, who were born in New York City.
She is now the grandmother of five, including Talita von Fürstenberg.

The Fürstenbergs' marriage, although unpopular with the groom's family because of the bride's Jewish ethnicity, was considered dynastic, and on her marriage she became Her Serene Highness Princess Diane of Fürstenberg.
However, she lost any claim to the title following their separation in 1972 and divorce in 1983.

In 2001, she married American media mogul Barry Diller.

On 28 February 2020, Fürstenberg was made a Chevalier de la Legion D’Honneur for her contributions to fashion, women's leadership, and philanthropy.
She was presented the award by Christine Lagarde, president of the European Central Bank, in a ceremony at the Ministry of Europe and Foreign Affairs headquarters on the Quai d'Orsay.
At university, when she was 18, she met Prince Egon von Fürstenberg, the elder son of Prince Tassilo zu Fürstenberg, a German Roman Catholic prince, and his first wife, Clara Agnelli, an heiress to the Fiat automotive fortune and member of the Italian nobility. Married in 1969, the couple had two children, Alexander and Tatiana, who were born in New York City. She is now the grandmother of five, including Talita von Fürstenberg.
The Fürstenbergs' marriage, although unpopular with the groom's family because of the bride's Jewish ethnicity, was considered dynastic, and on her marriage she became Her Serene Highness Princess Diane of Fürstenberg. However, she lost any claim to the title following their separation in 1972 and divorce in 1983.
In 2001, she married American media mogul Barry Diller.
On 28 February 2020, Fürstenberg was made a Chevalier de la Legion D’Honneur for her contributions to fashion, women's leadership, and philanthropy. She was presented the award by Christine Lagarde, president of the European Central Bank, in a ceremony at the Ministry of Europe and Foreign Affairs headquarters on the Quai d'Orsay.
Diane von Fürstenberg