A Look Into Jackie Kennedy's Rocky Relationship With Her Sister Lee Radziwill

Jackie and Caroline "Lee" Bouvier were born into a family that was already accustomed to the limelight that extravagant wealth provides. Their father, stockbroker John Vernou Bouvier III, encouraged his daughters to "be the best," something both girls strived for throughout their lives. But in Lee's eyes, it wasn't easy to compete with her highly accomplished, fashionable, and well-liked older sister. 

Adding to the stress of competing with Jackie was a very real sense that their father preferred the older daughter over Lee, partially due to Jackie boasting her father's namesake and physical attributes like her distinct, wideset eyes and high cheekbones, per Vanity Fair.  "[Jackie] was not only named after him ... but she actually looked almost exactly like him, which was a source of great pride to my father," Lee wrote in her memoir Happy Times (via Vanity Fair).

However, according to "Jackie, Janet, & Lee," Lee held the higher esteem of the sisters' mother. Jonathon Tapper, the former butler of Janet and Lee's mother, then known as Janet Lee Bouvier, revealed to Taraborrelli that although Jackie felt more involved in caring for her mother in her old age, "If that phone would ring and it would be Lee — maybe once a month if that much — oh my, Madam would light up! She would say it outright, 'Lee is my favorite'" (per Page Six).