Biography
Isabella Poyntz was born 6 March 1803 to William Stephen Poyntz (c1769-1840) and Elizabeth Mary Browne (1767-1830) and died 6 March 1879 32 Upper Brook Street, Mayfair, Greater London, England, United Kingdom of unspecified causes. She married Brownlow Cecil, 2nd Marquess of Exeter (1795-1867) 12 May 1824 .
Children
| Name | Birth | Death | Joined with |
| William Alleyne Cecil, 3rd Marquess of Exeter (1825-1895) | 30 April 1825 Connaught Place, Greater London, England, United Kingdom | 14 July 1895 Burghley House, Stamford, Lincolnshire, England, United Kingdom | Georgina Sophia Pakenham (1827-1909) |
| Brownlow Thomas Montagu Cecil (1827-1905) | |||
| Isabella Mary Cecil (1830-1830) | |||
| Mary Frances Cecil (1832-1917) | |||
| Edward Henry Cecil (1834-1862) | |||
| Dorothy Anne Cecil (1837-1837) | |||
| Henry Poyntz Cecil (1838-1858) | |||
| Adelbert Percy Cecil (1841-1889) | |||
| Victoria Cecil (1843-1932) | |||
Footnotes (including sources)
| ‡ General |
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