| Children |
| | 1. Joan Lancaster, Princess of England, b. Between Feb 1334 and 1335, Palace, Woodstock, Oxford, England d. 2 Sep 1348 (Age 14 years) [Father: natural] [Mother: natural] |
| | 2. Isabel Lancaster, Princess of England, b. 16 Jun 1332, Palace, Woodstock, Oxford, England d. Bef 4 May 1379 (Age < 46 years) [Father: natural] [Mother: natural] |
| | 3. Thomas Lancaster, Duke of Gloucester, b. 7 Jan 1355, Palace, Woodstock, Oxford, England d. 9 Sep 1397, Calais, Pas-de-Calais, Nord-Pas-de-Calais, France (Age 42 years) [Father: natural] [Mother: natural] |
| | 4. William Lancaster, Prince of England, b. Between 16 Feb 1336 and 1337, Hatfield, Hertfordshire, England d. Bef 8 Jul 1337, Hatfield, Hertfordshire, England (Age < 1 years) [Father: natural] [Mother: natural] |
| | 5. Edward Lancaster, Prince of Wales, b. 15 Jun 1330, Palace, Woodstock, Oxford, England d. 8 Jun 1376, Palace, Westminster, Middlesex, England (Age 45 years) [Father: natural] [Mother: natural] |
| | 6. John le Gaunt, Duke of Lancaster, b. 24 Jun 1340, Gent, Oost-Vlaanderen, Belgium d. 3 Feb 1399, Castle, Leicester, Leicestershire, England (Age 58 years) [Father: natural] [Mother: natural] |
| | 7. Edmund Lancaster, Duke of York, b. 5 Jun 1341, Kings Langley, Hertfordshire, England d. 1 Aug 1402, Abbots Langley, Hertfordshire, England (Age 61 years) [Father: natural] [Mother: natural] |
| | 8. Margaret Lancaster, Princess of England, b. 20 Jul 1346, Berkshire, England d. Aft 1 Oct 1361, of, Kenilworth, Warwick, England (Age > 15 years) [Father: natural] [Mother: natural] |
| | 9. Mary Lancaster, Princess of England, b. 10 Oct 1344, Bishops Waltham, Hampshire, England d. 1362, Abingdon, Berkshire, England (Age 17 years) [Father: natural] [Mother: natural] |
| | 10. Blanche Lancaster, Princess of England, b. Between Mar 1342 and 1343, London, England d. Between Mar 1342 and 1343, London, England (Age 0 years) [Father: natural] [Mother: natural] |
| | 11. Lionel Lancaster, Duke of Clarence, b. 29 Nov 1338, Antwerp, Brabant, Belgium, Netherlands d. 17 Oct 1368, Cuneo, Piemonte, Italy (Age 29 years) [Father: natural] [Mother: natural] |
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