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, her daughter Anna Christina Radziwill confirmed to the New York Times.
Though their relationship was at times, challenging, Lee was by her side in 1963 after Jackie’s husband John F. Kennedy was assassinated.
Sharing his memories of that time, Clint Hill — Jackie’s secret service agent who was with her almost every day for nearly four years — said Lee did “everything she could to support her sister.”
Following the news that JFK had been assassinated, Lee — who was then married to Prince Stanislaw Albrecht “Stas” Radziwill —flew from her London home to Washington D.C. to be at her sister’s side, Hill told PEOPLE.
“She came to Washington. She got there before Stas did; a day before, to be with Mrs. Kennedy,” Hill recalled. “She went with us that following Thursday, which was Thanksgiving Day. We flew up to Cape Cod so that Mrs. Kennedy could talk to the President’s parents.”
“She remained with us pretty much during that entire time until Mrs. Kennedy and the children moved out of the White House on December 6th and moved to Georgetown,” Hill, the author of Mrs. Kennedy and Me and Five Days in November recalls
In the months that followed, Jackie leaned on Lee, taking a trip together to Florida, along with Stas and their two children that Christmas. Lee tried to comfort her heartbroken sister.
“They would be together privately in the bedroom, and Lee was there, supporting her,” Hill said. “Mrs. Kennedy was in shock.”
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“I think Lee was trying to do everything she could to support her, lend an ear if she wanted to talk or hold her hand if she needed that,” he continued. “Whatever it was… She didn’t go out hardly at all during that period of time; remained pretty much housebound for a while.”
Lee returned to Europe with her family after Christmas, leaving Hill with a grief-stricken Jackie. But Lee was also struggling with her grief Hill said.
“ was very, very sad,” he said. “She and P