Nielsen Hayden genealogy
Descendants of John I Deincourt
- 1183Father: Walter II Deincourt
John I Deincourt ( - 6 Nov 1183)
   └─ Oliver I Deincourt (Abt 1161 Blankney, Sleaford, Lincolnshire, England - Bef 1202)
    Amabel
       └─ Oliver II Deincourt
        Nichole
           └─ John Deincourt (of Blankney, Sleaford, Lincolnshire, England - Bef 14 Oct 1257) =>
            + Agnes de Neville (of Raby, Durham, England - Bef 20 Jul 1293)(m. Aft 1244)