Family Relationship of

Sandra Day O'Connor

First Female U.S. Supreme Court Justice

31st Great-granddaughter to

King Robert I

King of France

★ → Click or tap a name to see more details including source citations.

Download or
print chart

King Robert I

Beatrice of Vermandois

Hugh the Great

Hedwig of Saxony

Hugh Capet

Adelaide of Aquitaine

Robert II, King of France

Constance of Arles

Adela of France

Baudoin V of Flanders

Matilda of Flanders

William I, King of England

Henry I, King of England

Maud of Scotland

Maud of England

Geoffrey Plantagenet

Henry II, King of England

Ida de Tony

Sir William Longespee

Ela of Salisbury

William Longespee

Idoine de Camville

Ela Longespee

Sir James de Audley

Sir Hugh I de Audley

Iseult de Mortimer

Alice de Audley

Sir Ralph de Greystoke

Sir William de Greystoke

Joan FitzHenry

Sir Ralph de Greystoke

Katherine de Clifford

Joan de Greystoke

Sir William Bowes

Sir William Bowes

Sir Ralph Bowes

Sir Ralph Bowes

Margery Bowes

Anne Eure

John Mansfield

Elizabeth - - - - - -

Elizabeth Mansfield

Rev. John Wilson

Mary Wilson

Rev. Samuel Danforth

Rev. Samuel Danforth

Mary Danforth

Jacob Barney

Silence Barney

Lettice Carlyle Cobb

Hollis Day

Henry Clay Day

Henry R. Day

Sandra Day O'Connor

U.S. Supreme Court Justice