Family Relationship of

Gilbert de Clare

Magna Carta Surety

Leader of Gunpowder Plot

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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