Nielsen Hayden genealogy
Descendants of Henry de Beaumont
- 1340Father: Louis de Brienne
Mother: Agnes de Beaumont
Henry de Beaumont ( - 10 Mar 1340)
Alice Comyn ( - Bef 10 Aug 1349)(m. Bef 14 Jul 1310)
   ├─ Isabel de Beaumont ( - Aft 24 Mar 1361)
   │ Henry of Grosmont (1314 - 24 Mar 1361 Leicester, Leicestershire, England)(m. Abt 1337)
   │    └─ Blanche of Lancaster (25 Mar 1342 - 12 Sep 1368 bur.St. Paul's Cathedral, London, England)
   │     John of Gaunt (Mar 1340 Abbey of St. Bavo, Ghent, Flanders - 3 Feb 1399 Leicester Castle, Leicester,
   │     Leicestershire, England)(m. May 1359 Reading Abbey, Berkshire, England)
   │     Leicestershire, England)(m. May 1359 Reading Abbey, Berkshire, England)
   │        ├─ Philippa of Lancaster (31 Mar 1360 Leicester, Leicestershire, England -
   │        │ 19 Jul 1415 Odivelas, near Lisbon, Portugal)
   │        │ 19 Jul 1415 Odivelas, near Lisbon, Portugal)
   │        │ + Joao I, King of Portugal (Lisbon, Portugal;11 Apr 1358 - 14 Aug 1433)
   │        │ (m. 11 Nov 1387 Porto, Portugal)
   │        │ (m. 11 Nov 1387 Porto, Portugal)
   │        │ + John Holand ( - 9 Jan 1400 Pleshey Castle, Essex, England)(m. 24 Jun 1386 Plymouth, Devon, England)
   │        └─ Henry IV, King of England (1367 Bolingbroke Castle, Lincolnshire, England - 20 Mar 1413
   │         Jerusalem Chamber in the abbot's house near Westminster Abbey, Westminster, Middlesex, England) =>
   │         Jerusalem Chamber in the abbot's house near Westminster Abbey, Westminster, Middlesex, England) =>
   │         + Mary de Bohun ( - 1394)(m. 5 Feb 1381 Rochford Hall, Essex, England)
   └─ John de Beaumont (Abt 1318 - 14 Apr 1342 Northampton, Northamptonshire, England)
    Eleanor of Lancaster (Abt 1318 - 11 Jan 1372 Arundel, Sussex, England)(m. Bef Jun 1337)
       └─ Henry de Beaumont (1340 Brabant, Flanders - 25 Jul 1369 bur.Sempringham Priory, Lincolnshire, England)
        Margaret de Vere ( - 15 Jun 1398 bur.Grey Friars, Smithfield, London, England)(m. Bef 15 Feb 1363)
           └─ John de Beaumont (Abt 1361 of Folkingham and Barton on Humber, Lincolnshire, England -
            9 Sep 1396 Stirling, Stirlingshire, Scotland) =>
            9 Sep 1396 Stirling, Stirlingshire, Scotland) =>
            + Katherine de Everingham ( - Bef 1 Feb 1427)