Family Relationship of

Alfonso II, King of Aragon

23rd Great-grandfather to

Alan Turing

WWII Codebreaker of Nazi Enigma Machine

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Alfonso II, King of Aragon

Sancha of Castile

Pedro II, King of Aragon

Maria of Montpellier

James I, King of Aragon

Yolanda of Hungary

Isabella of Aragon

Philip III, King of France

King Philip IV of France

Joan of Navarre

Isabella of France

Edward II, King of England

Edward III, King of England

Philippa of Hainault

John of Gaunt

Katherine Roet

Sir John Beaufort

Margaret de Holand

Joan Beaufort

James I, King of Scotland

Annabella Stewart

Elizabeth Gordon

Robert Keith

William Keith

Elizabeth Keith

James Irvine

John Irvine

Lucretia Irvine

Arthur Dingwall

William Dingwall

Dr. Arthur Dingwall Fordyce

Janet Morison

Agnes Dingwall Fordyce

Alexander Fraser

Jean Stewart Fraser

John Robert Turing

Rev. John Robert Turing

Fanny Montague Boyd

Julius Matheson Turing

Ethel Sara Stoney

Alan Turing

WWII Codebreaker of Nazi Enigma Machine