

1st Earl of Somerset John Beaufort

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- 1 1st Earl of Somerset John Beaufort [1] b. 1373 d. 16 Mar 1410
Margaret Holland b. 1385 d. 30 Dec 1439
- 2 2nd Earl of Somerset Henry Beaufort [1.1]
b. Oct 1401 d. 25 Nov 1418
- 2 Joan Beaufort [1.2]
b. 1404 d. 15 Jul 1445
James I King of Scotland Stewart b. 10 Dec 1394 d. 21 Feb 1437
- 3 James Stewart, II [1.2.1]
Mary Guelders van Egmon
- 4 James Stewart, III [1.2.1.1]
[ =>]
- 4 Mary Stewart [1.2.1.2]
b. 1455 d. May 1488 [ =>]
- 4 James Stewart, III [1.2.1.1]
- 3 1st Earl of Atholl John Stewart [1.2.2]
b. 1430 d. 15 Sep 1512
Margaret Douglas
- 4 Anne Margaret Stewart [1.2.2.1]
- 4 Anne Margaret Stewart [1.2.2.1]
Countess of Atholl Eleanor Sinclair b. 1457 d. 21 Mar 1519
- 4 Catherine Forbes [1.2.2.2]
b. 1463 d. 1515
- 4 2nd Earl of Atholl John Stewart [1.2.2.3]
b. Feb 1475 d. 1521 [ =>]
- 4 Elizabeth Robertson of Straun [1.2.2.4]
b. 1481
- 4 Catherine Forbes [1.2.2.2]
- 3 James Stewart, II [1.2.1]
- + James Stewart
- 2 1st Duke of Somerset John Beaufort [1.3]
b. 25 Mar 1404 d. 27 May 1444
Margaret de Beauchamp b. 1410 d. 8 Aug 1482
- 3 Lady Margaret Beaufort [1.3.1]
b. 31 May 1443 d. 29 Jun 1509
Earl of Richmond Edmund Tudor b. 1430 d. 3 Nov 1456
- 4 Henry VII Tudor [1.3.1.1]
b. 28 Jan 1457 d. 21 Apr 1509 [ =>]
- 4 Henry VII Tudor [1.3.1.1]
- + Henry de Stafford b. 1425 d. 1481
- 3 Lady Margaret Beaufort [1.3.1]
- 2 1st Duke of Somerset Edmund Beaufort [1.4]
b. 1406 d. 22 May 1455
Eleanor de Beauchamp b. 1406 d. 4 Mar 1466
- 3 Countess of Ormonde Eleanor Beaufort [1.4.1]
b. 1431 d. 16 Aug 1501
Robert Spencer b. 1430 d. 1502
- 4 Catherine Spencer [1.4.1.1]
b. 1477 d. 14 Oct 1542
- 4 Catherine Spencer [1.4.1.1]
- 3 Margaret Beaufort [1.4.2]
b. 1437 d. 22 May 1474
Humphrey Stafford b. 1424 d. 22 May 1455
- 4 2nd Duke of Buckingham Henry Stafford [1.4.2.1]
b. 1455 d. 1483 [ =>]
- 4 2nd Duke of Buckingham Henry Stafford [1.4.2.1]
- 3 Countess of Ormonde Eleanor Beaufort [1.4.1]
- 2 2nd Earl of Somerset Henry Beaufort [1.1]