Family Relationship of

Richard de Clare

Magna Carta Surety

23rd Great-grandfather to

Upton Sinclair

Pulitzer Prize Winning Novelist

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Richard de Clare

Amice of Gloucester

Sir Gilbert de Clare

Isabel Marshal

Sir Richard de Clare

Maud de Lacy

Roese de Clare

Sir Roger de Mowbray

Sir John de Mowbray

Aline de Braiose

John de Mowbray

Joan of Lancaster

John de Mowbray

Elizabeth de Segrave

Sir Thomas Mowbray

Elizabeth Fitzalan

Margaret Mowbray

Sir Robert Howard

Katherine Howard

Sir Edward Neville

Catherine Neville

William Tanfield

Frances Tanfield

Anne Tanfield

Elizabeth Vincent

Richard Lane

Dorothy Lane

William Randolph

Richard Randolph

Elizabeth Ryland

Col. William Randolph

Mary Isham

Elizabeth Randolph

Richard Bland

Anna Bland

Robert Munford

Col. Robert Munford

Anne Beverley

Elizabeth Beverley Munford

Richard Kennon

Sarah Skipwith Kennon

Arthur Sinclair

Arthur Sinclair

Lelia Imogen Dawley

Upton Beall Sinclair

Priscilla Augusta Harden

Upton Sinclair

Pulitzer Prize Novelist