John Beaufort, 1st. Earl of Somerset
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- 1  John Beaufort, 1st. Earl of Somerset [1]  b. Abt 1373 d. 16 Mar 1410
  Margaret Holland  b. 1385 d. 31 Dec 1439
- 2  Lady Joan Beaufort [1.1]   
 b. Abt 1404 d. 15 Jul 1445
                    - +  King James I Stewart, of Scotland  b. Jul 1394 d. 21 Feb 1437
 
  Sir James Stewart  b. Abt 1399 d. Abt 1451
- 3  Sir John Stewart, 1st. Earl of Atholl [1.1.1]   
 b. Abt 1440 d. 19 Sep 1512
                                    
  Lady Eleanor Sinclair  b. 1457 d. 21 Mar 1518
- 4  Lady Isabel Stewart [1.1.1.1]   
 b. Unknown d. Unknown
[ =>]                                                 
- 4  Lady Isabel Stewart [1.1.1.1]   
 
 
- 3  Sir John Stewart, 1st. Earl of Atholl [1.1.1]   
 
 - +  King James I Stewart, of Scotland  b. Jul 1394 d. 21 Feb 1437
 
- 2  Lady Joan Beaufort [1.1]   
 
 
