Family Relationship of

John Kerry

68th U.S. Secretary of State

17th cousin to

Sarah Ferguson

Duchess of York

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Sir Philip Wentworth

Mary Clifford

Elizabeth Wentworth

Sir Martin de la See

Sir Henry Wentworth

Anne Say

Joan de la See

Sir Piers Hildyard

Margery Wentworth

Isabel Hildyard

Edward Seymour

Joan Ledgard

Edward Seymour

Edward Skepper

Edward Seymour

Rev. William Skepper

Jane - - - - - -

Sir William Seymour

Jane Skepper

Jane Seymour

Jane Browne

Charles Boyle

Mary Lunt

Richard Boyle

Mary Wingate

Charlotte Elizabeth Boyle

Sir William Cavendish

Elizabeth Pickering

John Gardner

George Augustus Henry Cavendish

Elizabeth Compton

Elizabeth Gardner

Samuel Blanchard

William Cavendish

Louisa O'Callaghan

Francis Blanchard

Mary Ann Cabot

George Henry Cavendish

Louisa Lascelles

Elizabeth Cabot Blanchard

Robert Charles Winthrop

Susan Henrietta Cavendish

Henry Robert Brand

Robert Charles Winthrop

Elizabeth Mason

Margaret Brand

Algernon Francis Holford Ferguson

Margaret Tyndal Winthrop

James Grant Forbes

Andrew Henry Ferguson

Marian Louisa Montagu-Douglas-Scott

Rosemary Isabel Forbes

Richard John Kerry

Ronald Ivor Ferguson

Susan Mary Wright

John Kerry

68th U.S. Secretary of State

Sarah Ferguson

Duchess of York

Sarah Ferguson photo by Norbert Aepli ( CC BY 3.0)