Nielsen Hayden genealogy
Descendants of Robert de Clifford
Abt 1274 - 1314 (~ 40 years)Father: Roger de Clifford (Abt 1242 of Appleby, Westmorland, England - 6 Nov 1282 Moel-y-Don, Wales)
Mother: Isabel de Vipont (Abt 1248 of Appleby, Westmorland, England - 1291 bur.Shap Abbey, Westmorland, England)
Robert de Clifford (Abt 1 Apr 1274 - 24 Jun 1314 Bannockburn, Stirlingshire, Scotland)
Maud de Clare ( - 1 Feb 1325)(m. 13 Nov 1295)
   ├─ Idoine de Clifford (of Appleby, Westmorland, England - 24 Aug 1365 bur.Beverley Minster, Yorkshire, England)
   │ Henry de Percy (1299 - 26 Feb 1352 Warkworth, Northumberland, England)(m. Abt 1318)
   │    ├─ Isabel Percy ( - Between 13 Sep 1349 and 25 May 1368)
   │    │ William de Aton (Abt 1299 - 10 Feb 1388 bur.Old Malton Priory, Yorkshire, England)(m. Bef Jan 1327)
   │    │    ├─ Elizabeth de Aton ( - Between 25 Apr 1402 and 1 May 1402) =>
   │    │    │ + John Conyers (of Sockburn, Durham, England - Feb 1395)
   │    │    │ + Ralph Eure (Abt 1350 of Witton in Weardale, Durham, England - 10 Mar 1422)(m. Bef 1385)
   │    │     + Edward de St. John (of Londesborough, Yorkshire, England - 7 Mar 1389)
   │    ├─ Eleanor de Percy ( - Bef 18 Oct 1361 bur.Dunmow Priory, Little Dunmow, Essex, England)
   │    │ John Fitz Walter (Abt 1315 - 18 Oct 1361 bur.Dunmow Priory, Little Dunmow, Essex, England)
   │    │     + Aubrey Vere (Between 1338 and 1340 - 23 Apr 1400)
   │    ├─ Henry de Percy (Between 1322 and 1325 of Alnwick, Northumberland, England -
   │    │ Abt 18 May 1368 Warkworth, Northumberland, England)
   │    │ Abt 18 May 1368 Warkworth, Northumberland, England)
   │    │ Mary of Lancaster (Abt 1320 - 1 Sep 1362 bur.Alnwick Abbey, Northumberland, England)(m. Bef 5 Sep 1334)
   │    │    └─ Henry Percy (10 Nov 1341 of Warkworth, Northumberland, England -
   │    │     19 Feb 1408 Bramham Moor, near Tadcaster, Yorkshire, England) =>
   │    │     19 Feb 1408 Bramham Moor, near Tadcaster, Yorkshire, England) =>
   │    │     + Margaret de Neville ( - 11 May 1372 bur.North Allerton, Yorkshire, England)
   │    │     (m. 12 Jul 1358 Brancepeth, Durham, England)
   │    │     (m. 12 Jul 1358 Brancepeth, Durham, England)
   │    └─ Maud Percy (Abt 1345 Alnwick, Northumberland, England -
   │     Bef 18 Feb 1379 bur.Durham Cathedral, Durham, Durham, England)
   │     Bef 18 Feb 1379 bur.Durham Cathedral, Durham, Durham, England)
   │     John de Neville (Abt 1330 - 17 Oct 1388 Newcastle-upon-Tyne, Northumberland, England)(m. Bef 1362)
   │        │ + Ralph Lumley (Abt 1360 of Lumley in Little Lumley, Durham, England -
   │        │ 5 Jan 1400 Cirencester, Gloucestershire, England)(m. Abt 1380)
   │        │ 5 Jan 1400 Cirencester, Gloucestershire, England)(m. Abt 1380)
   │        ├─ Thomas Neville ( - 14 Mar 1407 bur.Worksop Priory, Nottinghamshire, England) =>
   │        │ + Joan Furnival (Abt Oct 1368 - 1395 bur.Worksop Priory, Nottinghamshire, England)(m. Bef 1 Jul 1379)
   │        │ + Ankaret le Strange (1361 - 1 Jun 1413)(m. Bef 4 Jul 1401)
   │        └─ Ralph de Neville (Bef 1367 - 21 Oct 1425 Raby Castle, Durham, England) =>
   │         + Margaret Stafford ( - 9 Jun 1396 bur.Brancepeth, Durham, England)(m. Aft 19 Jun 1382)
   │         + Joan Beaufort (Abt 1379 - 13 Nov 1440 Howden, Yorkshire, England)(m. Bef 29 Nov 1396)
   ├─ Margaret de Clifford ( - 8 Aug 1382)
   │ Peter de Mauley (Abt 1300 of Mulgrave, Yorkshire, England - 18 Jan 1355)(m. Bef 16 Apr 1322)
   │    └─ Peter de Mauley (Abt 1331 of Mulgrave, Yorkshire, England - 19 Mar 1383)
   │     Elizabeth de Meinell (15 Oct 1331 Whorlton, Yorkshire, England - 9 Jul 1368)(m. Bef 18 Nov 1356)
   │        └─ Peter de Mauley (of Hexthorpe, Yorkshire, England - Between Jan 1378 and 20 Mar 1383) =>
   │         + Margery de Sutton ( - 10 Oct 1391 bur.Friars Preachers, York, Yorkshire, England)(m. Abt 1371)
   └─ Robert de Clifford (5 Nov 1305 of Appleby, Westmorland, England -
    20 May 1344 bur.Shap Abbey, Westmorland, England)
    20 May 1344 bur.Shap Abbey, Westmorland, England)
    Isabel de Berkeley ( - 25 Jul 1362)(m. Jun 1328 Berkeley Castle, Berkeley, Gloucestershire, England)
       └─ Roger de Clifford (10 Jul 1333 of Appleby, Westmorland, England - 13 Jul 1389)
        Maud de Beauchamp ( - 1403)(m. Bef 20 Mar 1357)
           │ + John Melton (Abt 1377 of Aston, Yorkshire, England - 24 May 1455)(m. Bef 1415)
           │ + William Ferrers (Bef 25 Apr 1372 Luton Hoo, Bedfordshire, England - 18 May 1445)
           ├─ Katherine Clifford ( - 23 Apr 1413 bur.Church of the Dominican Friars, York, Yorkshire, England) =>
           │ + Ralph de Greystoke (18 Oct 1353 Kirkby Ravensworth, Yorkshire, England - 6 Apr 1418)(m. Bef 1378)
            + Elizabeth de Ros ( - Mar 1424)