Family Relationship of

Gilbert de Clare

Magna Carta Surety

21st Great-grandfather to

Alan Turing

WWII Codebreaker of Nazi Enigma Machine

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Gilbert de Clare

Isabel Marshal

Isabella de Clare

Robert de Bruce

Sir Robert de Brus

Marjorie of Carrick

Robert I, King of Scotland

Elizabeth de Burgh

Matilda Bruce

Thomas Isaac

Joan Isaac

John de Ergadia

Isabel de Ergadia

Sir John Stewart

Sir Robert Stewart

Joan Stewart

- - - - - - Stewart

Sir John Lindsay

John Lindsay

Mariot Baillie

Margaret Lindsay

Sir James Stewart

Elizabeth Stewart

Grizel Crichton

Katherine Dunbar

Alexander Brodie

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