Caroline Lee Bouvier, born on March 3, 1933, in New York, was the younger sister of Jacqueline Kennedy Onassis. She was named after her maternal grandfather, James Thomas Lee, and was raised in posh penthouse apartments until her parents' divorce when she was just a couple of years old.
Her mother, Janet Norton Lee, later married Hugh Dudley Auchincloss, and Caroline gained two stepbrothers, a stepsister, a half-brother, and a half-sister. She attended boarding schools, including Miss Porter's, which her sister had also attended. As a graduation present, Jackie took her on a trip to Europe for a summer before going to college.
Around this time, Caroline met Michael Temple Canfield, whom she married at age 20 in 1953. The same year, the Canfields were best man and matron of honor at the wedding of Lee's sister Jackie to then-U.S. Senator John F. Kennedy.
The Canfields later moved to England, where they lived for several years before Caroline met Stash Radziwill, an exiled Polish nobleman. In 1958, they decided to divorce their spouses, and on March 19, 1959, they married. Their son, Anthony, was born five months later in Switzerland, followed by daughter Anna Christina, nicknamed Tina, in 1960. Tina's godfather was President John F. Kennedy.
The Radziwills wed in a Catholic ceremony, made possible through the intervention of Lee's brother-in-law, President Kennedy. However, their marriage was not successful, and they divorced in 1974. Caroline has since lived quietly in England, away from the public eye.
Tragedy struck in 1994 when she lost her only sibling, her sister Jackie, to cancer. Five years later, her son Anthony also died of cancer, and her nephew John Kennedy Jr., his wife, and sister-in-law were killed in a plane crash in New England, piloted by her nephew.