Edmund "Crouchback" Plantagenet, 1st. Earl of Leicester & Lancaster
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- 1  Edmund "Crouchback" Plantagenet, 1st. Earl of Leicester & Lancaster [1]  b. 16 Jan 1245 d. 5 Jun 1296
  Blanche of Artois  b. 1248 d. 2 May 1302
- 2  Henry Plantagenet, 3rd. Earl of Leicester & Lancaster [1.1]   
 b. Abt 1281 d. 22 Sep 1345
                    
  Maud Chaworth  b. Unknown d. Aft 1320
- 3  Mary Plantagenet [1.1.1]   
 b. 1320-1321 d. 1 Sep 1362
                                    
  Henry Percy, 3rd. Baron Percy  b. Abt 1321 d. 1368
- 4  Henry Percy, 1st. Earl of Northumberland [1.1.1.1]   
 b. 10 Nov 1341 d. 20 Feb 1408
[ =>]                                                 
- 4  Henry Percy, 1st. Earl of Northumberland [1.1.1.1]   
 
 - 3  Henry Plantagenet, 1st. Duke of Lancaster [1.1.2]   
 b. Abt 1310 d. 23 Mar 1361
                                    
  Isabella Beaumont  b. Abt 1320 d. 1361
- 4  Blanche Plantagenet, of Lancaster, Countess of Derby [1.1.2.1]   
 b. 25 Mar 1345 d. 12 Sep 1369
[ =>]                                                 
- 4  Blanche Plantagenet, of Lancaster, Countess of Derby [1.1.2.1]   
 
 
- 3  Mary Plantagenet [1.1.1]   
 
 
- 2  Henry Plantagenet, 3rd. Earl of Leicester & Lancaster [1.1]   
 
 
