Family Relationship of

George Mason

Father of the U.S. Bill of Rights

18th Great-grandson to

Roger le Bigod

Magna Carta Surety

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Roger le Bigod

Ida de Tony

Mary le Bigod

Ranulph FitzRobert

Sir Ralph FitzRanulph

Anastasia de Percy

Mary FitzRanulph

Robert de Neville

Sir Ranulph de Neville

Euphemia de Clavering

Sir Ralph de Neville

Alice de Audley

Margaret de Neville

Sir Henry Percy

Elizabeth Percy

Thomas Clifford

Matilda Clifford

Thomas Dudley

Winifred Dudley

Richard Blencowe

Sir Henry Blencowe

Grace Sandford

John Blencowe

Anne Mallison

Elizabeth Blencowe

Henry Thompson

Sir William Thompson

Mary Stephens

Stephens Thompson

Dorothea Tanton

Ann Thompson

George Mason

George Mason

Father of Bill of Rights