Nielsen Hayden genealogy
Descendants of Roger de Clifford
Abt 1242 - 1282 (~ 40 years)Father: Roger de Clifford (Abt 1221 of Tenbury, Worcestershire, England - Bef 3 Apr 1286 bur.Dore Abbey, Herefordshire, England)
Mother: Maud ( - Bef 1273)
Roger de Clifford (Abt 1242 of Appleby, Westmorland, England - 6 Nov 1282 Moel-y-Don, Wales)
Isabel de Vipont (Abt 1248 of Appleby, Westmorland, England - 1291 bur.Shap Abbey, Westmorland, England)
(m. Aft 28 Jun 1265)
(m. Aft 28 Jun 1265)
   └─ 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)
       │ 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)
       │    ├─ 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)
       │    ├─ 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)
       │    │ (m. Bef 5 Sep 1334)
       │    └─ 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)
       ├─ 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)
       └─ 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)