Nielsen Hayden genealogy
Ronald F. Malan, "The Ancestry of Dhuoda, Duchess of Septimania." The Genealogist 11:116, Spring 1997.
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Title Ronald F. Malan, "The Ancestry of Dhuoda, Duchess of Septimania." The Genealogist 11:116, Spring 1997. Source ID S4416 Linked to (2) Aznar I Galindez
Wulgrin I of Angoulême