Lee Radziwill net worth: Lee Radziwill is an American socialite, executive, and former actress who has a net worth of $50 million. Lee Radziwill was born in Southampton, New York in March 1933. She is known for being the sister of former First Lady Jacqueline Kennedy Onassis and the sister-in-law of President John F. Kennedy. In 1996 Radziwill was named to the International Best Dressed List Hall of Fame. Her acting career was unsuccessful and highly publicized. Radziwill served as a public relationships executive for Italian fashion designer Giorgio Armani. She has been married three times including to Prince Stanislaw Albrecht Radziwill and Herbert Ross and has two children including Anthony Stanislas Albert Radziwill. Lee was married to Michael Canfield and served as matron of honor for the wedding between John F. Kennedy and Jackie. The couple moved to England and lee met Stanislas Radziwill. Both decided to get divorced and marry each other.