Family Relationship of

Robert de Ros

Magna Carta Surety

22nd Great-grandfather to

John Foster Dulles

52nd U.S. Secretary of State

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Robert de Ros

Isabel of Scotland

Sir William de Ros

Lucy FitzPiers

Sir Robert de Ros

Isabel de Aubeney

William de Ros

Maude de Vaux

Sir William de Ros

Margery de Badlesmere

Maud de Roos

Anne de Welles

James Butler

Elizabeth Butler

Ann Talbot

Elizabeth Vernon

Dorothy Corbet

Sir Richard Mainwaring

Sir Arthur Mainwaring

Mary Mainwaring

Frances Cotton

Robert Abell

Joshua Abell

Lydia Abell

Lydia Lathrop

Elizabeth Coit

Col. Christopher Leffingwell

Joanna Leffingwell

Charles Lathrop

Harriet Wadsworth Lathrop

Rev. Miron Winslow

Harriet Lathrop Winslow

Rev. John Welsh Dulles

Allen Macy Dulles

Edith Foster

John Foster Dulles

52nd U.S. Secretary of State