| Male Duke of Somerset John Beaufort |
| Birth | 1404 | |
| Death | 27 May 1444 | Wimborne, Dorset, England, United Kingdom |
| Burial | ||
| Marriage | 1440 | |
| Father | Earl of Somerset John Beaufort | F1801 Group Sheet | |
| Mother | Margaret Holland | F1801 Group Sheet | |
| Female Duchess of Somerset Margaret Beauchamp |
| Birth | ||
| Death | 8 Aug 1482 | Wimborne, Dorset, England, United Kingdom |
| Burial | ||
| Father | ||
| Mother | ||
| Female + Countess of Richmond Margaret Beaufort |
| Birth | 31 May 1443 | Bletsoe Castle, Bletsoe, Bedfordshire, England, United Kingdom |
| Death | 29 Jun 1509 | Cheyneygates, Abbots House, Westminster Abbey, London, Greater London, England, United Kingdom |
| Burial | ||
| Spouse | Earl of Richmond Edmund Tudor | F1803 | |
| Marriage | 1 Nov 1455 | |