Family: William Cavendish, 7th. Duke of Devonshire. KG. PC. / Lady Blanche Georgiana Howard (F4033)
m. 1829William Cavendish (1783-1812) 
|
Louisa O'Callaghan ( -1863) |
| George Howard, 6th. Earl of Carlisle (1773-1848) |
| Lady Georgiana Dorothy Cavendish (1783-1858)
|
Lady Harriet Elizabeth Georgiana Howard (1806-1868)  |
| Lady Elizabeth Dorothy Ann Georgiana Howard (1816-1891) |
| Lady Blanche Georgiana Howard (1812-1840)
|
| Lt. Col. Edward Cavendish (1838-1891) |