Family Relationship of

Alice de Audley

(c1302–1373/74)

18th Great-grandmother to

Alan Turing

WWII Codebreaker of Nazi Enigma Machine

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Alice de Audley

Sir Ralph de Neville

Sir John de Neville

Maude de Percy

Sir Ralph Neville

Joan Beaufort

Cecily Neville

Sir Richard Plantagenet

Edward IV, King of England

Elizabeth Woodville

Elizabeth of York

Henry VII, King of England

Margaret Tudor

James IV, King of Scotland

James V, King of Scotland

Margaret Erskine

James Stewart

Agnes Keith

Elizabeth Stewart

Grizel Stewart

Elizabeth Innes

Grizel Brodie

Catharine Dunbar

Anne Ogilvie

James Turing

John Turing

John Robert Turing

Jean Stewart Fraser

Rev. John Robert Turing

Fanny Montague Boyd

Julius Matheson Turing

Ethel Sara Stoney

Alan Turing

WWII Codebreaker of Nazi Enigma Machine