Updated Feb 20, 2026
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Kathleen Cavendish: American socialite, sister of John F. Kennedy (1920–1948).
Born in Brookline (died at age 28).
Biography
Kathleen Agnes Cavendish, Marchioness of Hartington, also known as "Kick" Kennedy, was an American socialite. 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.
Connections (5)
Related People
Frequently Asked Questions
How old was Kathleen Cavendish?
Kathleen Cavendish was born on and passed away on at the age of 28.
Where was Kathleen Cavendish born?
Kathleen Cavendish was born in Brookline.
Where can I find more information about Kathleen Cavendish?
You can find more about Kathleen Cavendish on Wikidata. Their full profile and filmography is available on this page.
