| Family 1 |
John, Duke of Lancaster, b. Mar 1340, Abbaye de St Bavon, Ghent, Flandre-Orientale, Belgium d. 3 Feb 1398 OR 1399, Leicester Castle, Leicester, Leicestershire, England (Age 58 years) |
| Children |
| | 1. John "Fairborn" BEAUFORT, Marquess of Somerset, b. Abt 1371, Château De Beaufort, Maine-et-Loire, France d. 16 Mar 1409 OR 1410, St. Catherine By The Tower Hospital, London, Middlesex, England (Age 39 years) |
| | 2. Joan de BEAUFORT, Countess of Westmoreland, b. Abt 1375, Château De Beaufort, Maine-et-Loire, France d. 13 Nov 1440, , Howden, Yorkshire, England (Age 65 years) |
| | 3. Henry "Cardinal" de BEAUFORT, BISHOP OF LINCOLN & WINCHESTER, b. Abt 1376, Château De Beaufort, , France d. 11 Apr 1447, , Winchester, Hampshire, England (Age 71 years) |
| | 4. Thomas BEAUFORT, DUKE OF EXETER, b. Abt Jan 1377, Château De Beaufort, , France d. 31 Dec 1426, Greenwich Manor, East Greenwich, Kent, England (Age 49 years) |
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