Nielsen Hayden genealogy
Descendants of Baldwin de Bullers
Baldwin de Bullers
   └─ Maud de Bullers
    Richard fitz Urse ( - Bef 1154)
       ├─ Reginald Fitzurse ( - 1170)
       └─ Margery Fitzurse (Abt 1135 - Aft 21 May 1196)
        Richard Engaine (of Laxton, Northamptonshire, England - Bef 1177)
           └─ Richard Engaine (of Laxton, Northamptonshire, England - 23 Apr 1209) =>
            + Sara de Chesney (of Horsford, Norfolk, England - Apr 1222)