Jackie Kennedy Onassis Facts
15 Things You Might Not Have Known About Jackie Kennedy Onassis
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Jackie's younger sister Lee Radziwill, whose birth name is Caroline Lee Bouvier, was married to Polish aristocrat Prince Stanislaw Albrecht Radziwill from 1959 to 1974. During their marriage, she was given the official title of Her Serene Highness Princess Stanislaw Albrecht Radziwill. Jackie also had two half-siblings, Janet and James Auchincloss, through her mother's second marriage to Hugh D. Auchincloss.