Nielsen Hayden genealogy
Ancestors of John Fitzwilliam
Abt 1328 - Bef 1385 (~ 57 years) ┌── William fitz William (of Sprotborough, Yorkshire, England -
│ Between 1219 and 23 Feb 1224) =>
│ Between 1219 and 23 Feb 1224) =>
┌── Thomas fitz William (Between 1195 and 1200 of Sprotborough, Yorkshire, England -
│ Bef 17 Oct 1264)
│ Bef 17 Oct 1264)
│ └── Ela de Warenne ( - Bef 1240) =>
│
┌── William fitz Thomas (of Sprotborough, Yorkshire, England - Bef 1295)
│ │
│ │ ┌── Roger Bertram (Abt 1194 of Mitford, Morpeth, Northumberland, England - 1242) =>
│ └── Agnes Bertram ( - Aft 1266)
│ └── Agnes ( - Aft 7 May 1256)
│
┌── William fitz William (of Sprotborough, Yorkshire, England -
│ Between 4 Mar 1339 and 1342 bur.Sprotborough, Yorkshire, England)
│ Between 4 Mar 1339 and 1342 bur.Sprotborough, Yorkshire, England)
│ │
│ │ ┌── Richard de Grey (Bef 1200 of Codnor, Derbyshire, England - Bef 5 Sep 1271)
│ │ │ (m. Bef 19 Jun 1223)
│ └── Agnes de Grey
│ │
│ │ ┌── John du Hommet (of Sherringham, Norfolk, England - Bef 18 Jun 1223)
│ └── Lucy du Hommet (m. Bef 19 Jun 1223)
│ └── Hawise
│
┌── John Fitzwilliam (of Sprotborough, Yorkshire, England - 10 Aug 1349)
│ │
│ │ ┌── Oliver II Deincourt =>
│ │ ┌── John Deincourt (of Blankney, Sleaford, Lincolnshire, England - Bef 14 Oct 1257)
│ │ │ (m. Aft 1244)
│ │ │ └── Nichole
│ │ │
│ │ ┌── Edmund Deincourt (of Blankney, Sleaford, Lincolnshire, England - 6 Jan 1327)
│ │ │ │
│ │ │ │ ┌── Geoffrey de Neville (of Raby, Durham, England - Bef Sep 1242) =>
│ │ │ └── Agnes de Neville (of Raby, Durham, England - Bef 20 Jul 1293)(m. Aft 1244)
│ │ │ └── Margaret
│ │ │
│ └── Isabel Deincourt ( - Aft 26 Jul 1348 bur.Sprotborough, Yorkshire, England)
│
John Fitzwilliam (Abt Feb 1328 of Sprotborough, Yorkshire, England - Bef 19 Feb 1385 Howden, Yorkshire, England)
│
│ ┌── Adam Reresby (of Thribergh, Yorkshire, England - ??)
└── Joan Reresby