For more on the amazing life of Lee Radziwill and her connection to sister Jacqueline Kennedy Onassis, subscribe now to PEOPLE or pick up this week’s issue, on newsstands Friday. “It’s so ...

Lee Radziwill and Jacqueline Kennedy Onassis had a complicated relationship but when Jackie needed her younger sister most, she was there. On Friday, Lee died at her home at 85 in New York City ...

Aristotle Onassis. She was accompanied by her sister, Lee Radziwill. and was six minutes late to watch the Stuttgart Ballet company perform "Eugene Onegin." That same three-act ballet production ...