The actress and former model Jocelyn Lane married Prince Alfonso of Hohenlohe-Langenburg in Marbella, Spain, in February 1971. In 1984, her marriage to Prince Alfonso ended in a divorce in which she received a million-dollar settlement.
On June 7, 2003, when she was 19 years old, Olivia Wilde married Prince Tao Ruspoli, an Italian filmmaker, photographer and musician, second son of occasional actor and aristocrat Prince Alessandro Ruspoli, 9th Prince of Cerveteri. On 8 February 2011, they announced that they were separating. The divorce was finalized on 29 September 2011.
https://en.wikipedia.org/wiki/Alessandro_Ruspoli,_9th_Prince_of_Cerveteri
On 2 december 1947 Italian actress Laura Adani married Duke Luigi Visconti di Modrone, and in 1969 she married Ernesto Balbo Bertone, Count of Sambuy, Duke of Nochera.
Actress Olga Villi married in 1953 nobleman Raimondo Lanza di Trabia.
Actress Maria Michi married in 1949 Prince Augusto Torlonia.
Popular italian actress Clara Calamai married Count Leonardo Bonzi.
Actor Giancarlo Sbragia married princess (and actress) Esmeralda Ruspoli.
Hollywoodian star Henry Fonda was married to italian baroness Afdera Franchetti from 1957 to 1961.
French actor Georges Brehat maried italian princess Giovanna Pinatelli.
Prince Frederick Windsor, the son of Prince and Princess Michael of Kent, is married to the actress Sophie Winkleman. They married in Hampton Court Palace on 12 September 2009. By virtue of her marriage, she became entitled to be styled as Lady Frederick Windsor.
Mexican actress Rosita Arena is married to Spanish aristocrat Jaime de Mora y Aragón, brother of Queen Fabiola of Belgium. The marriage lasted 2 mounths.
Hollywood star Jessica Chastain is married to Gian Luca Passi di Preposulo, an Italian count of the Passi de Preposulo noble family.
Rita Jenrette is a former american actress and television journalist from Texas and she married Prince Nicolo Boncompagni Ludovisi of Piombino. They live in his 16th century family home in Rome, called the Villa Aurora, or sometimes Casino Ludovisi.