Hugh Dudley Auchincloss Iii: the Stepbrother

Though Not a Blood Relation, Hugh Dudley Auchincloss Iii Was the Elder Brother Jackie Gained When Their Parents Wed in 1942.

Fact About Siblings of Jacqueline Kennedy

Caroline Lee Radziwill: the Sister

Janet Jennings Auchincloss: the Half-Sister

Born After Jacqueline Gained a Stepfather, Janet Jennings Auchincloss Was a Half-Sister Who Nonetheless Felt Wholly Bonded in Youth’s Carefree Days.

James Lee Auchincloss: the Half-Brother

Jacqueline Kennedy Onassis’ Half-Brother, James Lee Auchincloss, Was Born in 1947, Following His Sister Janet by Two Year's.

Jacqueline Kennedy Onassis’s Siblings Were a Vibrant and Unique Bunch, Each Carving out Their Paths and Facing Their Trials.

Beyond the Camelot Mystique: Unveiling the Siblings of Jacqueline Kennedy

By Elena Rostova

• Oct 8, 2026 • 5 min read

Beyond the Camelot Mystique: Unveiling the Siblings of Jacqueline Kennedy

Direct Answer • Key Takeaway

Jackie Kennedy Onassis Enchanted America as First Lady with Her Stylish Intelligence and Passion for the Arts.

Elena Rostova

Lead Health, Wellness & Medical Journalist

Elena Rostova holds a Master's degree in Public Health Journalism. She covers groundbreaking medical research, holistic wellness trends, mental health awareness, and nutritional science.

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