Biography
Mary Capell was born 16 December 1630 in Hadham Parva, Hertfordshire, England, United Kingdom to Arthur Capell, 1st Baron Capell (1604-1649) and Elizabeth Morrison (1613-1660) and died 7 January 1715 Chelsea, London, England, United Kingdom of unspecified causes. She married Henry Seymour (1626-1648) 28 June 1648 . She married Henry Somerset, 1st Duke of Beaufort (1629-1700) 17 August 1657 .
Children
| Name | Birth | Death | Joined with |
| William Seymour, 3rd Duke of Somerset (1652-1671) | |||
| Elizabeth Seymour (c1655-1696) | 1655 England, United Kingdom | 12 January 1696 | Thomas Bruce, 2nd Earl of Ailesbury (1655-1741) |
| Frances Seymour (c1655-) | |||
| Mary Seymour (c1657-) | |||
| Name | Birth | Death | Joined with |
| Charles Somerset (1660-1698) | December 1660 St Martin in the Fields, London, England, United Kingdom | 13 July 1698 Wanstead, Essex, England, United Kingdom | Rebecca Child (1666-1712) |
| Mary Somerset (c1662-1733) | 1664 | 19 November 1733 | James Butler (1665-1745) |
| Henry Somerset (c1664-) | |||
| Edward Somerset (c1668-) | |||
| Arthur Somerset (c1670-1743) | 1670 | July 1743 | Mary Russell (c1659-?) |
| Elizabeth Somerset (c1672-) | |||
| Henrietta Somerset (c1676-1715) | |||
| Mary Somerset (-1733) | |||
Footnotes (including sources)
| ‡ General |
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