I love reading Wikipedia. Life IS stranger than fiction. Today I stumbled across an article about this character:
Egon von Fürstenberg was born at Lausanne in Switzerland. Brought up in great privilege in Venice, Italy, he was baptized by the future Pope John XXIII.
Fürstenberg began his career as a buyer for Macy's, and took night classes at the Fashion Institute of Technology. He began designing clothes for plus-size women, and later expanded to full fashion and ready-to-wear lines, including fragrances, product licensing and a haute couture line based in Rome.
On 16 July 1969 at Montfort l'Amaury, Yvelines, France, he married the Belgium-born Diane Simone Michelle Halfin, daughter of a Holocaust survivor. She was Jewish and pregnant, and the senior Fürstenbergs objected to the couple's union on for those reasons. They had two children, Prince Alexander von Furstenberg (b. 25 January 1970) and Princess Tatiana Desirée (b. 16 February 1971), and were divorced in 1972.