Nielsen Hayden genealogy
Descendants of Emma de Teisa
Father: Waltheof
Emma de Teisa (of Nesham, Durham, England - ??)
Ralph fitz William (of Grimthorpe, Yorkshire, England - Aft 1130)
   └─ Ralph fitz Ralph (of Grimthorpe, Yorkshire, England - Aft 1 Dec 1189)
    Emma
       └─ William fitz Ralph (of Grimthorpe, Yorkshire, England - Bef 26 Aug 1218)
        Joan de Meinell
           └─ Ralph fitz William (of Grimthorpe, Yorkshire, England - Aft 9 Feb 1227) =>
            +