| Entry Type | Person |
| Surname | Cavendish |
| Forenames | Kathleen Agnes |
| Also Known As | Kennedy, Kick |
| Title | Marchioness of Hartington |
| Epithet | Daughter of Joseph P. Kennedy, Sr. (1888–1969) and Rose Fitzgerald (1890–1995), sister of future U.S. President John F. Kennedy (1917–1963) and wife of William Cavendish, Marquess of Hartington; nicknamed "Kick". |
| Dates | 1920-1948 |
| Authorised Form of Name | Cavendish; Kathleen Agnes (1920-1948); Marchioness of Hartington; Daughter of Joseph P. Kennedy, Sr. (1888–1969) and Rose Fitzgerald (1890–1995), sister of future U.S. President John F. Kennedy (1917–1963) and wife of William Cavendish, Marquess of Hartington; nicknamed "Kick". |
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