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Origin and Ancestry DNA Database & Electronic Archive
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 MaleThomas Beauchamp, 11th Earl of Warwick, Marshal of England m. Katherine Mortimer |
| Birth | Abt 14 Feb 1314 | Warwick Castle, Warwick, Warwickshire, England, UK  |
| Death | 13 Nov 1369 | Calais, Pas-de-Calais, France |
| Burial | Warwick Collegiate Church of St. Mary, Warwick, Warwickshire, England, UK |
|
| Marriage | 1337 [1, 2] | |
| Father | Guy Beauchamp, m. Isabel (Clare) de Berkeley and Alice de Toeni la Zouche | F5834 Group Sheet | |
| Mother | ||
 FemaleKatherine Mortimer, m. Thomas Beauchamp |
| Birth | abt. 1314 | Wigmore, Herefordshire, England, UK |
| Death | Between 4 Aug 1369 and 6 Sep 1369 | |
| Burial | Warwick Collegiate Church of St. Mary, Warwick, Warwickshire, England, UK |
|
| Father | Roger Mortimer, 1st Earl of March; m. Joan Greneville | F899 Group Sheet | |
| Mother | Joan Geneville | F899 Group Sheet | |
| Male + Thomas Beauchamp, 12th Earl of Warwick m. Margaret Ferrers |
| Birth | bef. 1339 | |
| Death | 8 Apr 1401 | |
| Burial | ||
| Spouse | Margaret Ferrers, m. Thomas Beauchamp | F5783 | |
| Marriage | ||
| Male + William ap Thomas Beauchamp, lord of Abergavenny; m. Joan fitzAlan |
| Birth | 1343 | of, , Gloucestershire, England |
| Death | 8 May 1411 | |
| Burial | Church of the Friar Preachers, Hereford, Herefordshire, England |
|
| Spouse | Joan FitzAlan, de Arundel m. William Beauchamp | F108794 (Wife - 2nd Marriage) | |
| Marriage | Yes, date unknown | |
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