I William
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- 1 I William [1]
Joan of Valois
- 2 Philippa of Hainault [1.1]
b. 24 Jun 1311 d. 14 Aug 1369
Edward III Plantagenet b. 13 Nov 1312 d. 21 Jun 1377
- 3 John of Gaunt [1.1.1]
b. 6 Mar 1340 d. 3 Feb 1399
Katherine Swynford b. 25 Nov 1350 d. 10 May 1403
- 4 Joan Beaufort [1.1.1.1]
b. Abt 1379 d. 13 Nov 1440
[ =>] - 4 Henry Beaufort [1.1.1.2]
b. 1375 d. 1447
- 4 Thomas Beaufort [1.1.1.3]
b. 1377 d. 1427
- 4 John Beaufort [1.1.1.4]
b. 1373 d. 1410
- 4 Joan Beaufort [1.1.1.1]
- 3 John of Gaunt [1.1.1]
- 2 Philippa of Hainault [1.1]




