Jacqueline Lee Bouvier was born in Southampton, New York on 28 July 1929 to Wall Street stockbroker John Vernou 'Black Jack' Bouvier III and socialite Janet Norton Lee. Like her husband-to-be, she was Catholic by faith and had Irish ancestry on her mother's side.

Jackie spent her formative years at Wildmoor, her paternal grandparent's Hamptons estate, and in 1931 she moved with her parents into a plush duplex apartment at 740 Park Avenue in Manhattan.

From the early 1930s onwards, the privileged youngster spent every summer at Lasata, her paternal grandparents' grander 10-bedroom Arts and Crafts-style home in the Hamptons, pictured here. The house sold in 2023 for a reported $52 million (£41m).

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