Family Relationship of

Boso of Arles

22nd Great-grandfather to

Robert Catesby

Leader of Gunpowder Plot

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Boso of Arles

Willa of Tuscany

Willa of Arles and Tuscany

Berengario II, King of Italy

Rozala of Lombardy

Arnulf II of Flanders

Baudoin IV of Flanders

Ogive of Luxembourg

Baudoin V of Flanders

Adela of France

Matilda of Flanders

William I, King of England

Henry I, King of England

- - - - - - - - - - - -

Robert of Gloucester

Mabel FitzHamon

William FitzRobert

Hawise de Beaumont

Amice of Gloucester

Sir Richard de Clare

Sir Gilbert de Clare

Isabel Marshal

Sir Richard de Clare

Maud de Lacy

Thomas de Clare

Juliana FitzMaurice

Margaret de Clare

Bartholomew de Badlesmere

Margery de Badlesmere

Sir William de Ros

Elizabeth de Roos

Sir William la Zouche

Sir William la Zouche

Agnes Greene

Sir William la Zouche

Elizabeth - - - - - -

William Zouche

Elizabeth St. John

Margaret Zouche

William Catesby

George Catesby

Elizabeth Empson

Sir Richard Catesby

Dorothy Spencer

William Catesby

Katherine Willington

Sir William Catesby

Anne Throckmorton

Robert Catesby

Leader of Gunpowder Plot