Master Surname Index







Sandra Day O'Connor

Ancestry of
Sandra Day O'Connor

First Female U.S. Supreme Court Justice


    John of Gaunt

    View famous kin of John of Gaunt

    • 18th Great-grandfather of Sandra Day O'Connor — 21st Generation
    • Ahnentafel No:
    • 1158414 
    • Birth Date:
    • 6 Mar 1340 
    • Birth Location:
    • Ghent, Belgium 
    • Christening Date:
    •  
    • Christening Location:
    •  
    • Death Date:
    • 3 Feb 1399 
    • Death Location:
    • Leicester Castle, Leicestershire, England 
    • Burial Date:
    •  
    • Burial Location:
    •  
    • Marriage Date:
    • 13 Jan 1396 
    • Marriage Location:
    • Lincoln Cathedral, Lincolnshire, England 
    • Children:

    • John Beaufort

      Henry Beaufort

      Joan Beaufort (Ahnentafel No:579207 )

    • Notes: 
    • 2nd Duke of Lancaster

  • Additional marriages for John of Gaunt


    • Spouse:
    • Blanche of Lancaster

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