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- 1 John Gaunt Plantagenet [1] b. 6 Mar 1340 d. 03 February 1399
Constance of Castile, Duchess of Lancaster
- 2 John de Beaufort, 1st Marquess of Somerset and 1st Marquess of Dorset, later only 1st Earl of Somerset, KG [1.1]
b. 1371 d. 16 March 1410
Margaret Holland, Duchess Of Clarence, Lady Companions of the Garter b. 1385 d. 31 Dec 1439
- 3 Henry de Beaufort, 2nd Earl of Somerset [1.1.1]
b. 26 Nov 1401 d. 25 Nov 1418
- 3 Joan Beaufort, Lady, Queen of Scots [1.1.2]
b. Abt. 1404 d. 15 Jul 1445
- 3 John de Beaufort, 1st Duke of Somerset, 3rd Earl of Somerset, KG [1.1.3]
b. 25 Mar 1404 d. 30 May 1444
- 3 Thomas de Beaufort, 1st Count of Perche [1.1.4]
b. Abt. 1405 d. 3 Oct 1431
- 3 Edmund de Beaufort, 2nd Duke of Somerset, 4th Earl of Somerset, 1st Earl of Dorset, 1st Marquess of Dorset styled 1st Count of Mortain,KG [1.1.5]
b. 1406 d. 22 May 1455
- 3 Margaret de Beaufort, Countess of Devon [1.1.6]
b. Abt. 1409 d. 1449
- 2 Henry Beaufort [1.2]
b. 1374 d. 11 Apr 1447
- 2 Thomas de Beaufort [1.3]
b. January 1377 d. 27 December 1426
Katherine Swynford, Duchess of Lancaster b. 25 Nov 1350 d. 10 May 1403
- 2 Joan Plantagenet de Beaufort [1.4]
b. 1375 d. 13 November 1440
Robert Ferrers, 2nd Baron Ferrers of Wem
Ralph Neville, 1st Earl of Westmorland, 4th Baron Neville de Raby, KG PC Earl Marshal b. 1364 d. 21 Oct 1425
- 3 Katherine Neville [1.4.3]
b. Abt. 1397 d. Abt. 1483
- 3 Eleanor Neville [1.4.4]
b. 1398 d. 04 Feb 1484
- 3 Richard Neville, Sir, 5th Earl of Salisbury [1.4.5]
b. 1400 d. 1460
- 3 Henry Neville [1.4.6]
b. Abt. 1402
- 3 Robert Neville [1.4.7]
b. 1404 d. 1457
- 3 William Neville, Earl of Kent, (seventh creation) KG, jure uxoris 6th Baron Fauconberg [1.4.8]
b. Abt. 1405 d. 9 Jan 1463
- 3 John Neville [1.4.9]
b. Abt. 1406
- 3 George Neville, 1st Baron Latimer [1.4.10]
b. Abt. 1407 d. 1469
- 3 Anne Neville [1.4.11]
b. Abt. 1408 d. 1480
- 3 Thomas Neville [1.4.12]
b. Abt. 1410
- 3 Cuthbert Neville [1.4.13]
b. Abt. 1411
- 3 Joan Neville [1.4.14]
b. Abt. 1412 d. 1453
- 3 Edward Neville, 3rd Baron Bergavenny [1.4.15]
b. Abt. 1414 d. 1476
- 3 Cecily Neville, Duchess of York [1.4.16]
b. 1415 d. 1495
Richard of York, House of Plantagenet, 3rd Duke of York, 6th Earl of March b. 21 Sep 1411 d. 30 Dec 1460
- 4 Anne of York, Duchess of Exeter [1.4.16.1]
b. 10 Aug 1439 d. 14 Jan 1476
- 4 Henry of York [1.4.16.2]
b. 10 Feb 1441 d. 10 Feb 1441
- 4 4 March 1461 to 3 October 1470 first period as King Edward IV, 4th Duke of York, 7th Earl of March, King of England [1.4.16.3]
b. 28 Apr 1442 d. 9 Apr 1483
- 4 Edmund of York, Earl of Rutland [1.4.16.4]
b. 17 May 1443 d. 30 Dec 1460
- 4 Elizabeth of York, Duchess of Suffolk [1.4.16.5]
b. 22 Apr 1444 d. Abt. 1503
- 4 Margaret of York, Duchess of Burgundy [1.4.16.6]
b. 3 May 1446 d. 23 Nov 1503
- 4 William of York [1.4.16.7]
b. 7 Jul 1447 d. Bef. 1457
- 4 John of York [1.4.16.8]
b. 7 Nov 1448 d. Bef. 1458
- 4 George Plantagenet, of York, 1st Duke of Clarence [1.4.16.9]
b. 21 Oct 1449 d. 18 Feb 1478
- 4 Thomas of York [1.4.16.10]
b. Abt. 1450
- 4 Richard III of York, , Duke of Gloucester, KG, King of England and France and Lord of Ireland [1.4.16.11]
b. 2 Oct 1452 d. 22 Aug 1485
- 4 Ursula of York [1.4.16.12]
b. 22 Jul 1455
Blanche of Lancaster b. 25 March 1345 d. 30 September 1369