William Cavendish, 7th Duke of Devonshire
William Cavendish, 7th Duke of Devonshire (
1808 -
1891), was the great-grandson of the
4th duke and married the niece of the
6th duke, Lady Blanche Howard (1812 - 1840). He endowed the
Cavendish Laboratory, named after his relative
Henry Cavendish.