Nielsen Hayden genealogy
Descendants of Maud de Prendergast
Abt 1242 - Bef 1276 (~ 33 years)Father: Gerald de Prendergast (of Enniscorthy in Templeshanbo, Wexford, Ireland - Aug 1251)
Mother: (Unknown) de Burgh
Maud de Prendergast (Abt 1242 - Bef 1276)
Maurice fitz Maurice (Abt 1238 - Bef 2 Sep 1277)(m. Bef 28 Oct 1259)
   └─ Juliane fitz Maurice (of Offaly, Ireland - Bef 24 Sep 1300)
    Thomas de Clare (Between 1243 and 1248 - 29 Aug 1287 Ireland)(m. Bef 18 Feb 1275)
       ├─ Maud de Clare ( - 1 Feb 1325)
       │ Robert de Clifford (Abt 1 Apr 1274 - 24 Jun 1314 Bannockburn, Stirlingshire, Scotland)(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)
       │    │ + Peter de Mauley (Abt 1300 of Mulgrave, Yorkshire, England - 18 Jan 1355)(m. Bef 16 Apr 1322)
       │    └─ 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)
       │     (m. Jun 1328 Berkeley Castle, Berkeley, Gloucestershire, England)
       └─ Margaret de Clare (Between 1286 and 1287 - 1333)
        + Gilbert de Umfreville ( - Bef 23 May 1303 bur.Hexham Priory, Northumberland, England)(m. 1289)
        Bartholomew de Badlesmere (Abt 1275 of Badlesmere, Kent, England - 12 Apr 1322 Canterbury, Kent, England)
        (m. Bef 29 Sep 1305)
        (m. Bef 29 Sep 1305)
           │ + William IV de Ros (Abt 1288 of Helmsley, Yorkshire, England -
           │ 3 Feb 1343 bur.Kirkham Priory, Yorkshire, England)(m. Bef 25 Nov 1316)
           │ 3 Feb 1343 bur.Kirkham Priory, Yorkshire, England)(m. Bef 25 Nov 1316)
           ├─ Maud de Badlesmere (Abt 1308 -
           │ 24 May 1366 bur.Earl's Colne Priory, Halstead, Great Bromley, Essex, England) =>
           │ 24 May 1366 bur.Earl's Colne Priory, Halstead, Great Bromley, Essex, England) =>
           │ + John de Vere (Abt 12 Mar 1312 - 23 Jan 1360 bur.Earl's Colne Priory, Halstead, Great Bromley, Essex,
           │ England)(m. Bef 27 Mar 1336)
           │ England)(m. Bef 27 Mar 1336)
           ├─ Elizabeth de Badlesmere (Abt 1313 - 8 Jun 1356 Rochford, Essex, England) =>
           │ + Edmund de Mortimer (Between 1305 and 1306 of Wigmore, Herefordshire, England - Bef 21 Jan 1332
           │ : Stanton Lacy, Shropshire, England)(m. 27 Jun 1316 Ernwood in Kinlet, Shropshire, England)
           │ : Stanton Lacy, Shropshire, England)(m. 27 Jun 1316 Ernwood in Kinlet, Shropshire, England)
           │ + William de Bohun (Abt 1312 - 16 Sep 1360 bur.Walden Abbey, Essex, England)(m. 13 Nov 1335)
           └─ Margaret de Badlesmere (3 Dec 1314 - Between 1344 and 1347) =>
            + John de Tibetot (20 Jul 1313 of Nettlestead, Bosmere, Suffolk, England - 13 Apr 1367)
            (m. Bef 24 Jul 1337)
            (m. Bef 24 Jul 1337)