Kathleen Cavendish
American socialite, sister of John F. Kennedy (1920-1948) · United States · On the map · Historical Figures · Died at 28
Kathleen Agnes Cavendish, Marchioness of Hartington, also known as "Kick" Kennedy, was an American socialite.
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A typical day, 30 days to 2 November 2026
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She was the second daughter of Joseph P. Kennedy Sr. and Rose Fitzgerald, a sister of U.S. President John F. Kennedy and Senators Robert F. Kennedy and Ted Kennedy, and the wife of the Marquess of Hartington, heir apparent to the 10th Duke of Devonshire.