Ancestry of
Sandra Day O'Connor

First Female U.S. Supreme Court Justice

Ferdinand III, King of Castile

View famous kin of Ferdinand III, King of Castile

• • 22nd Great-grandfather of Sandra Day O'Connor — 25th Generation
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  • 18534626 
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  • Joanna of Ponthieu
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  Eleanor of Castile (Ahnentafel No:9267313 )

• Sources for Ferdinand III, King of Castile

  • ¹ Browning, Charles H., Americans of Royal Descent: A Collection of Genealogies of American Families Whose Lineage is Traced to . . ., 2nd Ed., Philadelphia: Porter and Coates (1891), 448.
  • ² Browning, Charles H., ed., Americans Of Royal Descent, Philadelphia: Porter and Coates (1883), 287.
  • ³ Burke, John and John Bernard Burke, The Royal Families of England, Scotland, and Wales, with their Descendants, Sovereigns and Subjects, Vol. II, London: J. Billing, Printer and Stereotyper (1851), Pedigree xv: Frevile Lambton Burne, Esq..
  • ⁴ Pitcairn, Constance, The History of the Fife Pitcairns with Transcripts from Old Charters, Edinburgh and London: William Blackwood and Sons (1905), 419.