John of Gaunt, 1st Duke of Lancaster 1340 - 1399 Katherine de Roet Swynford, Duchess of Lancaster 1350 - 1403 John Beaufort, 1st Earl of Somerset 1373 - 1410 Margaret Holland, Duchess of Clarence 1385 - 1439 Lady Joan Beaufort, Countess of Westmoreland 1379 - 1440 Thomas Beaufort, 1st Duke of Exeter Henry Beaufort, Cardinal of England Joan Beaufort, Queen consort of Scots 1404 - 1445 John Beaufort, 1st Duke of Somerset, 3rd Earl of Somerset 1404 - 1444 Edmund Beaufort, 2nd Duke of Somerset 1406 - 1455 Lady Eleanor Beauchamp, Baroness de Ros and Duchess of Somerset 1408 - 1467 Margaret Beaufort, Countess of Devon 1409 - 1449 Thomas Beaufort, Count of Perche Henry Beaufort, 2nd Earl of Somerset Lady Eleanor Beaufort 1431 - 1501 Henry Beaufort, 3rd Duke of Somerset 1436 - 1464 John Beaufort, Marquess of Dorset 1441 - 1471 Edmund Beaufort, 4th Duke of Somerset

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