For more on Jackie Kennedy and Lee Radziwill’s relationship, pick up the newest issue of PEOPLE, on newsstands Friday. “Jackie knew it going into the marriage, and Janet knew it as well ...

Prince Stanislaw Radziwill first gave Jackie the Cartier Tank watch in 1963. Now it’s part of a major London museum exhibit.

Before you go, click here to see all the women JFK was accused of having affairs with during his marriage to Jackie Kennedy..

By getting a fancy new townhouse in Georgetown, Hines also will be able to stay close to her famously philandering husband ...

Jackie Kennedy Knew About JFK's Infidelity — and That It Would Likely Continue in Their Marriage, Book Claims Jackie Kennedy's Childhood Summer Home Hits the Market for $55 Million — See Inside!

because of the abuse and criticism he has received for defending Jacqueline Kennedy's marriage to Aristotle Onassis. "I propose after the publicity I have received in recent days in my own native ...

Jackie and Bobby Kennedy. Newly discovered letters reveal Jacqueline Bouvier Kennedy's feelings about her marriage to President John F. Kennedy and reaction to his death. The 14 years of ...