She first met John Kennedy at a dinner party in 1952. They had a whirlwind romance, and the pair wed not long after he was elected to the United States Senate.
As First Lady, she aided her husband with travelling, social events and the restoration of the White House.
She took great pride in sourcing original features and tracing back previous furniture from the 1800s when Abraham Lincoln was president. Every penny spent on the renovation was privately funded by investors that Mrs Kennedy had been in touch with.
The media coverage on this was huge, and she even made a documentary taking a step-by-step account of the rooms and the work that had been done. It was the first peep the nation had into the formerly private White House.