Biography
Myra Rowena Sibell Orde-Powlett was born 22 December 1879 to William Thomas Orde-Powlett, 4th Baron Bolton (1845-1922) and Algitha Frederica Mary Lumley (1847-1919) and died 27 October 1973 of unspecified causes. She married William Thomas Brownlow Cecil, 5th Marquess of Exeter (1876-1956) 16 April 1901 in Wensley, Yorkshire, England, United Kingdom.
Children
| Name | Birth | Death | Joined with |
| Letitia Sibell Winifred Cecil (1903-1992) | |||
| David George Brownlow Cecil, 6th Marquess of Exeter (1905-1981) | 9 February 1905 Burghley House, Stamford, Lincolnshire, England, United Kingdom | 21 October 1981 Burghley House, Stamford, Lincolnshire, England, United Kingdom | Mary Theresa Montagu-Douglas-Scott (1904-1984) Diana Mary Henderson (1911-1982) |
| William Martin Alleyne Cecil, 7th Marquess of Exeter (1909-1988) | |||
| Romayne Elizabeth Algitha Cecil (1915-2001) | |||
Footnotes (including sources)
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