YourRoots by Genomelink
banner

Sign up to explore more

Create a free account to navigate family trees, view ancestors, and discover connections.

Lady Katherine de Roet Swynford, Duchess of Lancaster 1350–1403 – Genealogical Records

Birth Date: 25 November 1350

Birth Location: Somme, Picardie, France

Death Date: 10 May 1403

Death Location: Cathedral Church, City of Lincoln, Lincolnshire, England

Father: Payne Guienne

Mother: Catherine D'Avesnes

Spouse(s): John Plantagenet, Hugh Swynford

Children(s): Blanche Swynford, Isabella Plantagenet, Henry Beaufort, Thomas Swynford, Margaret Swynford, John Plantagenet, John Beaufort, Joan BEAUFORT, Elizabeth Lancaster, Thomas Beaufort, Edward Plantagenet

The story of Lady Katherine de Roet Swynford, Duchess of Lancaster began in 1350 in Somme, Picardie, France. Lady Katherine de Roet Swynford, Duchess of Lancaster married Hugh Swynford, John Of Gaunt 1St Earl Of Lancaster Plantagenet, and had children including Blanche Mary Swynford, Edward Plantagenet, Elizabeth Lancaster, Henry Cardinal Beaufort, Isabella Plantagenet, Joan De Beaufort, John Fairborn Beaufort, John Plantagenet, Margaret Swynford, Thomas Beaufort, Thomas De Swynford. Lady Katherine de Roet Swynford, Duchess of Lancaster passed away in 1403 in Cathedral Church, City of Lincoln, Lincolnshire, England.

Find more search results for Lady Lancaster
LL

Reliability Score

This score reflects the reliability of the source family tree. A high rating indicates a trustworthy source with strong data consistency.

Reliability Score:
A
Criteria:
  • A 3 criteria (Strong)
  • B 2 criteria (Medium)
  • C 1 criteria (Basic)
  • N/A 0 criteria (Insufficient)

This tree's reliability score:

  • Record available
  • Descendant's record available
  • Star tree owner

Biography

  • The story of Lady Katherine de Roet Swynford, Duchess of Lancaster began in 1350 in Somme, Picardie, France.
  • Lady Katherine de Roet Swynford, Duchess of Lancaster married Hugh Swynford, John Of Gaunt 1St Earl Of Lancaster Plantagenet, and had children including Blanche Mary Swynford, Edward Plantagenet, Elizabeth Lancaster, Henry Cardinal Beaufort, Isabella Plantagenet, Joan De Beaufort, John Fairborn Beaufort, John Plantagenet, Margaret Swynford, Thomas Beaufort, Thomas De Swynford.
  • Lady Katherine de Roet Swynford, Duchess of Lancaster passed away in 1403 in Cathedral Church, City of Lincoln, Lincolnshire, England.

Immediate Family

Parents

Payne Guienne
1310–1380
Birth Location: Roet or Mons, Hainault, Walloon, Belgium, France
PG
Catherine D'Avesnes
1315–1375
Birth Location: Somme, Picardie, France
CD

Spouses(s)

John Plantagenet
1340–1398
Birth Location: Abbaye De St Bavon, Ghent, Flandre Orientale, Belgium
JP
Hugh Swynford
1333–1371
Birth Location: Gainsborough, Lincolnshire, England
HS

Children(s)

Blanche Swynford
1367–1368
Birth Location: Kettelthorpe Man, Lincolnshire, , England
BS
Isabella Plantagenet
1368–1368
Birth Location: Bolingbroke, Lincolnshire, England
IP
Henry Beaufort
1375–1447
Birth Location: Anjou, Isere, Rhone-Alpes, France
HB
Thomas Swynford
1368–1432
Birth Location: Kettlethorpe Manor, Kettlethorpe, Lincolnshire, England
TS
Margaret Swynford
1369–1433
Birth Location: Kettlethorpe, Lincolnshire, England
MS
John Plantagenet
1365–1365
Birth Location: Beaufort, Maine-et-Loire, Pays de la Loire, France
JP
John Beaufort
1371–1410
Birth Location: Ch. De Beaufort (Maine en Loire) F
JB
Joan BEAUFORT
1379–1440
Birth Location: Beaufort Castle, Goudet, Haute-Loire, Auvergne, France
JB
Elizabeth Lancaster
1363–1425
Birth Location: Reading, Berkshire, England
EL
Thomas Beaufort
1377–1426
Birth Location: Anjou, Isere, Rhone-Alpes, France
TB
Edward Plantagenet
1365–1368
Birth Location: Leicester, Leicestershire, , England
EP

Lady Lancaster's Ancestors

Self
Lady Lancaster
1350–1403
Birth Place: Somme, Picardie, France
Parents
Payne Sir deRoet Guienne
1310–1380
Roet or Mons, Hainault, Walloon, Belgium, France
Catherine D'Avesnes
1315–1375
Somme, Picardie, France
Grandparents
Sir (Payn Guienne) Roet
1275–1322
Roet, Hainault, Belgium
Lady (Maria Christina of) Hainaut
1280–1375
Hainaut, Belgium
Guillaume D'Avesnes
1286–1337
Avesnes, Pas-De-Calais, Nord-Pas-De-Calais, France
Johanna (van) Valois
1294–1342
Longpont, Aisne, Picardie, France
Great-Grandparents
Gilles- Roeulx-*
1237–1274
Agnes Trazegnies
1240–1270
John Hainult
1247–1304
Philippa DeLuxembourg
1252–1311
2nd-Great-Grandparents

Lady Lancaster's Descendants

1.
LL
Lady (Katherine de Roet Swynford, Duchess of) Lancaster (25 November 1350–10 May 1403) m. John (of Gaunt 1st Earl of Lancaster) Plantagenet (6 Mar 1340–15 Mar 1398) m. Hugh Swynford (1333–Sep 1371)
  1. 1. Blanche (Mary) Swynford 1367–1368
  2. 2. Isabella Plantagenet 1368–1368
  3. 3. Henry (Cardinal) Beaufort 1375–1447
  4. 4. Thomas (de) Swynford 1368–1432 m. MARGARET (de) GREY 1378–1454
    1. 1. Katherine Swynford 1410–1478
    2. 2. Dorothy Swynford 1394–
  5. 5. Margaret Swynford 1369–1433
  6. 6. John Plantagenet 1365–1365
  7. 7. John (Fairborn) Beaufort 1371–1410
    1. 1. Henry Beaufort 1401–1418
    2. 2. John Beaufort 1404–1444
    3. 3. Joan Beaufort 1404–1445 m. James (of Scotland) I 1394–1437 m. James ("Black Knight of Lorn") Stewart 1399–1451
      1. 1. John Stewart 1440–1512
      2. 2. James, ("1st Earl of Buchan") Stewart 1442–1499
      3. 3. Andrew Stewart 1442–1501
      4. 4. Margaret Stewart 1424–1445
      5. 5. Alexander (Stewart) (twin) 1430–1430
      6. 6. Isabella Stewart 1426–1499
      7. 7. Mary Stewart 1428–1465
      8. 8. Joan Stewart 1428–1486
      9. 9. James ((twin) of Scotland) II 1430–1460
      10. 10. Annabella Stewart 1436–1509
      11. 11. Eleanor (of) Scotland 1433–1480
    4. 4. Thomas Beaufort 1405–1431
    5. 5. Edmund Beaufort 1406–1455
    6. 6. Margaret Beaufort 1409–1449
  8. 8. Joan (de) BEAUFORT 1379–1440 m. Thomas Deneville 1345–1387 m. Sir (Ralph de Neville, 1st Earl of Westmorland, 4th Baron Neville de Raby, Lord of Richmond) Neville 1363–1425 m. Robert DeFerrers 1373–1396
    1. 1. Richard Neville 1400–1460 m. Alice, (Countess of Salisbury, De) Montagu 1405–1462
      1. 1. Margaret Neville 1444–1506 m. John (De) Vere 1442–1513
      2. 2. Cecille Neville 1426–1450
      3. 3. Alice Neville 1431–1503
      4. 4. George, (Archbishop of York, De) Neville 1433–1476
      5. 5. Joan Neville 1426–1462
      6. 6. Eleanor, (Countess of Derby, De) Neville 1438–1504
      7. 7. Sir (John de) Neville 1428–1471
      8. 8. Katherine Neville 1424–1506
      9. 9. Sir (Richard "Warwick The King Maker") Neville 1428–1471
    2. 2. Phillippa (de) Neville 1386–1453
    3. 3. Richard (Prudence) Neville 1388–1400
    4. 4. John DeNeville 1387–1420
    5. 5. MARGARET (Abbess Barkin DE) NEVILLE 1395–1465
    6. 6. Lady (Alice de) Neville 1380–1455
    7. 7. Maud (de) Neville 1383–1438
    8. 8. Cuthbert Neville 1405–1403
    9. 9. Joan (de) Neville 1398–1399
    10. 10. Sir (Edward Neville Sir Edward Neville 1st Lord Abergavenny, Knight of the Garter, ?3rd ?4th Baron of Raby, Marshall (later Co-Re /Sir Edward Neville 1st Lord Abergavenny, Knight of the Garter, ?3rd ?4th Baron of Raby, Marshall (later Co-Regent)) o 1412–1476
    11. 11. William Neville 1410–1463
    12. 12. Thomas Neville 1402–1431
    13. 13. Mathilda Neville 1383–1438
    14. 14. Ann Neville 1387–
    15. 15. Cuthbert Neville 1364–1425
    16. 16. Eleanor Neville 1388–1401
    17. 17. Mary DeFerrers 1384–1418
    18. 18. Elizabeth Ferrers 1390–1436
  9. 9. Elizabeth Lancaster 1363–1425 m. Thomas (de Holland, 2d Earl of Kent) K.G. 1350–1397
    1. 1. Constance DeHoland 1387–1437
    2. 2. Richard (de) Holand 1378–1400
  10. 10. Thomas Beaufort 1377–1426 m. Margaret Neville 1383–1424
    1. 1. THOMAS BEAUFOREST 1420–1530 m. Margaret Bassett 1470–1537
      1. 1. Elizabeth (Walthan) Beauforest 1500–1556 m. Richard Branch\Brauche 1496–1544
        1. 1. Jennie (Beauforest) Branch 1540–1609 m. Gabryel Lamam 1543–1603
        2. 2. William Branch 1524–1584
        3. 3. Thomas Branch 1535–1565
        4. 4. John Braunche 1533–1588
        5. 5. Marion Braunche 1540–1546
        6. 6. John Braunche 1541–1588
        7. 7. Mary Branch 1545–
      2. 2. John Beauforest 1502–
      3. 3. Richard Beauforest 1498–
  11. 11. Edward Plantagenet 1365–1368

Lady Lancaster's Timeline

2 Records

1350
25 November 1350
Birth of Lady Katherine de Roet Swynford, Duchess of Lancaster in Somme, Picardie, France
Somme, Picardie, France
1403
10 May 1403
Age 53
Death of Lady Katherine de Roet Swynford, Duchess of Lancaster in Lincoln, Lincolnshire, England
Lincoln, Lincolnshire, England

Sources

    Genealogy Event 1
    Event Type: Birth
    Event Date: 25 November 1350
    Event Place: Somme, Picardie, France
    Record Source:
    [1] Dictionary of National Biography, Volumes 1-20, 22
    [2] Millennium File
    [3] Netherlands, GenealogieOnline Trees Index
    [4] UK and Ireland, Find a Grave Index
    [5] International, Find a Grave Index

    Genealogy Event 2
    Event Type: Death
    Event Date: 10 May 1403
    Event Place: Lincoln, Lincolnshire, England
    Record Source:
    [1] Dictionary of National Biography, Volumes 1-20, 22
    [2] Millennium File
    [3] Netherlands, GenealogieOnline Trees Index
    [4] UK and Ireland, Find a Grave Index
    [5] International, Find a Grave Index

    Genealogy Event 3
    Event Type: Burial
    Event Place: Cathedral Church, City of Lincoln, Lincolnshire, England
    Record Source:
    [1] Millennium File
    [2] UK and Ireland, Find a Grave Index
    [3] International, Find a Grave Index
    [4] Katherine Swynford Coat of Arms
Find more search results for Lady Lancaster

About YourRoots

Family Tree Map

Explore your family tree geographically

Import your GEDCOM file to transform your family tree into an interactive global map. See your roots laid out visually and understand your true geographic heritage.

Powerful tools like "Trace Back To Me" instantly map your family's migration paths from a chosen ancestor all the way back to you.

LEARN MORE
AI Genealogy Research

Discover ancestors beyond "end-of-line" automatically

Import your family tree and let AI expand it for you. AI Ancestor Finder scans "end-of-line" ancestors to uncover their parents across hundreds of family lines at once. AI Deep Research analyzes selected ancestors and family clusters, suggesting relevant records and next steps.

Turn on Auto Research Mode to get new discoveries daily or weekly, so your tree keeps growing even while you're away.

LEARN MORE
DNA Match

Find more DNA matches across all DNA tests

Combine your DNA data with your family tree to unlock the full power of YourRoots DNA Match. Connect with relatives across major testing services — Ancestry, 23andMe, MyHeritage, and more.

View your matches' maps and trees to identify shared ancestors, and soon you'll be able to add them directly to your own tree and map.

LEARN MORE
Ancestry Reports

Ancestry DNA analysis that goes deeper than others

Unlock exclusive reports that reveal your deeper origins.

  • Deep Ancestry Report — Analyze 130+ ethnicities, sub-regions, and 1,800+ communities in one detailed view.
  • Global & Native American Reports — Developed with Stanford researchers to uncover hidden ancestries across all 22 chromosomes.
  • Ancient DNA Series — Compare your DNA with 1,000+ ancient genomes from Viking, Celtic, and early American civilizations.
LEARN MORE