No cause of death has been given, and Radziwill was reported to have been in relatively good health recently. And now she's gone.
Lee Radziwill, the socialite and younger sister of former USA first lady Jacqueline Kennedy Onassis, died in NY on Friday at the age of 85, United States media reported.
The ever-elegant Radziwill's fashion sense was best illustrated by her work as an interior decorator and her time spent in a variety of positions working for Giorgio Armani.
"When I met her in the early '80s, I had the impression that she represented a very contemporary irony about American aristocracy, which is nearly impossible to define", he told the fashion trade journal. The society doyenne was also tabloid fodder through three high-profile marriages and friendships with the likes of Rudoph Nureyev and Truman Capote. She is survived by her daughter, Christina. In her biography, she reportedly wrote that their father favored Jackie over her, writing: "That was very clear to me but I didn't resent it because I understood he had reason to".
FILE PHOTO - Lee Radzwill Ross arrives at the apartment of her late sister Jacqueline Kennedy Onassis before the start of a private prayer service May 22, 1994.
Speaking to outlet, Armani, 84, said, "She was an extremely elegant women".
Caroline Lee Radziwill was considered the "the pretty one" and her sister Jackie as "the smart one" as the pair were growing up.
In 1961, Lee was invited to Buckingham Palace when John and Jackie Kennedy were entertained to dinner by the Queen and Prince Philip.
They were confidantes as young women, and Radziwill was a frequent guest at the White House during President John F. Kennedy's administration. As a socialite, she was known for her kindness and humor. Radziwill described Onassis to the Times as "dynamic, irrational, cruel, I suppose, but fascinating".
She was married to publishing executive Michael Canfield in 1953 until their divorce in 1959, the same year that she married a Polish aristocrat.
Her final marriage was in 1988, when she married American film director Herbert Ross. Capote fell out of favor with them in 1975 when Esquire magazine published La Côte Basque 1965, his thinly veiled tale of sex and dirty secrets. She also had an unsuccessful run in a Chicago stage production of "The Philadelphia Story" but was panned.
With her maiden name having been Bouvier, she took on the title of Her Serene Highness Princess Stanisław Albrecht Radziwiłł following the wedding.
Tragically, her son Anthony died in 1999 from cancer.