Biography of William Cavendish 7th Duke Devonshire 1808-1891

On 18th July 1807 [his father] William Cavendish [aged 24] and [his mother] Louisa O'Callaghan were married. He the son of [his grandfather] George Augustus Henry Cavendish 1st Earl Burlington [aged 53] and [his grandmother] Elizabeth Compton Countess Burlington [aged 47].

On 27th April 1808 William Cavendish 7th Duke Devonshire was born to [his father] William Cavendish [aged 25] and [his mother] Louisa O'Callaghan.

On 15th January 1812 [his father] William Cavendish [aged 29] died.

Around 1828. George Hayter [aged 35]. Portrait of William Cavendish 7th Duke Devonshire [aged 19].

In 1829 William Cavendish 7th Duke Devonshire [aged 20] and Blanche Georgiana Howard [aged 16] were married. She the daughter of George Howard 6th Earl Carlisle [aged 55] and Georgiana Cavendish Countess Carlisle [aged 45]. They were second cousins.

On 8th October 1831 [his son] William Cavendish was born to William Cavendish 7th Duke Devonshire [aged 23] and [his wife] Blanche Georgiana Howard [aged 19]. Coefficient of inbreeding 1.65%. He died aged two in 1834.

On 19th July 1833 George Granville Leveson-Gower 1st Duke Sutherland [aged 75] died. His son George [aged 46] succeeded 2nd Duke Sutherland, 3rd Marquess Stafford, 20th Earl Sutherland, 4th Earl Gower, 5th Baron Gower, 9th Baronet Gower of Stittenham in Yorkshire. [his sister-in-law] Harriet Elizabeth Georgiana Howard Duchess Sutherland [aged 27] by marriage Duchess Sutherland.

On 23rd July 1833 [his son] Spencer Cavendish 8th Duke Devonshire was born to William Cavendish 7th Duke Devonshire [aged 25] and [his wife] Blanche Georgiana Howard [aged 21]. Coefficient of inbreeding 1.65%. He married 16th August 1892 Louisa Vonalten Duchess Devonshire and Manchester.

On 4th May 1834 [his grandfather] George Augustus Henry Cavendish 1st Earl Burlington [aged 80] died. His grandson William [aged 26] succeeded 2nd Earl Burlington.

After 4th May 1834 George Henry Cavendish [aged 23] was elected MP North Derbyshire succeededing his older brother William [aged 26] when William succeeded his grandfather George Augustus Henry Cavendish 1st Earl Burlington [deceased] as Earl Burlington. He held the seat until his death in 1880.

On 15th May 1834 [his son] William Cavendish [aged 2] died.

On 16th March 1835 [his daughter] Louisa Caroline Cavendish was born to William Cavendish 7th Duke Devonshire [aged 26] and [his wife] Blanche Georgiana Howard [aged 23]. Coefficient of inbreeding 1.65%. She married 26th September 1865 her second cousin once removed Francis Leveson-Gower aka Egerton, son of Francis Leveson Gower aka Egerton 1st Earl Ellesmere and Harriet Greville Countess Ellesmere, and had issue.

On 30th November 1836 [his son] Frederick Charles Cavendish was born to William Cavendish 7th Duke Devonshire [aged 28] and [his wife] Blanche Georgiana Howard [aged 24] at Compton Place Eastbourne. Coefficient of inbreeding 1.65%. He married 7th June 1864 his third cousin Lucy Caroline Lyttelton, daughter of George William Lyttelton 4th Baron Lyttelton and Mary Glynne Lady Lyttelton.

On 28th January 1838 [his son] Edward Cavendish was born to William Cavendish 7th Duke Devonshire [aged 29] and [his wife] Blanche Georgiana Howard [aged 26] at Marylebone. Coefficient of inbreeding 1.65%. He married 3rd August 1865 his first cousin Emma Elizabeth Lascelles, daughter of William Lascelles and Caroline Georgiana Howard, and had issue.

On 27th April 1840 [his wife] Blanche Georgiana Howard [aged 28] died.

On 18th January 1858 William Cavendish 6th Duke Devonshire [aged 67] died at Hardwick Hall, Derbyshire [Map]. He was buried in the Cavendish Plot, St Peter's Church, Edensor [Map]. His first cousin once removed William [aged 49] succeeded 7th Duke Devonshire, 10th Earl Devonshire, 10th Baron Cavendish Hardwick. Baron Clifford abeyant.

On 7th June 1864 Frederick Charles Cavendish [aged 27] and Lucy Caroline Lyttelton [aged 22] were married. No issue. He the son of William Cavendish 7th Duke Devonshire [aged 56] and Blanche Georgiana Howard. They were third cousins.

On 3rd August 1865 Edward Cavendish [aged 27] and Emma Elizabeth Lascelles were married. He the son of William Cavendish 7th Duke Devonshire [aged 57] and Blanche Georgiana Howard. They were first cousins.

On 26th September 1865 [his son-in-law] Francis Leveson-Gower aka Egerton [aged 41] and Louisa Caroline Cavendish [aged 30] were married. She the daughter of William Cavendish 7th Duke Devonshire [aged 57] and Blanche Georgiana Howard. He the son of Francis Leveson Gower aka Egerton 1st Earl Ellesmere and Harriet Greville Countess Ellesmere [aged 62]. They were second cousin once removed.

On 18th May 1891 [his son] Edward Cavendish [aged 53] died. Monument to Edward Cavendish in Cartmel Priory, Lancashire [Map].

Edward Cavendish: On 28th January 1838 he was born to William Cavendish 7th Duke Devonshire and Blanche Georgiana Howard at Marylebone. Coefficient of inbreeding 1.65%. On 3rd August 1865 Edward Cavendish and Emma Elizabeth Lascelles were married. He the son of William Cavendish 7th Duke Devonshire and Blanche Georgiana Howard. They were first cousins.

On 21st December 1891 William Cavendish 7th Duke Devonshire [aged 83] died. He was buried at the Cavendish Plot, St Peter's Church, Edensor [Map]. His son Spencer [aged 58] succeeded 8th Duke Devonshire, 11th Earl Devonshire, 3rd Earl Burlington, 11th Baron Cavendish Hardwick.