Nielsen Hayden genealogy
Descendants of Isabel de Say
Abt 1132 -Father: Elias de Say (of Clun, Shropshire, England - 1165)
Isabel de Say (Abt 1132 of Clun, Shropshire, England - ??)
William fitz Alan (of Oswestry, Shropshire, England - 1160 bur.Shrewsbury Abbey, Shropshire, England)
   └─ William Fitz Alan (Abt 1154 of Oswestry, Shropshire, England - 1210)
    (Unknown) de Lacy (m. Abt 1175)
       └─ John Fitz Alan (of Clun, Shropshire, England - Bef 15 Mar 1240)
        Isabel d'Aubigny ( - Bef 1240)(m. Bef 1223)
           └─ John Fitz Alan (Abt 1223 of Clun, Shropshire, England - Bef 10 Nov 1267) =>
            + Maud de Verdun ( - 27 Nov 1283)(m. Bef 1240)