William Cavendish MP was an English nobleman and Whig politician. He was the son of Lord George Cavendish, later Earl of Burlington.
Portrait of the Children of Lord George Cavendish, 1790, by Sir Thomas Lawrence, showing William at right
Derby is a former United Kingdom Parliamentary constituency. It was a constituency of the House of Commons of the Parliament of England, then of the Parliament of Great Britain from 1707 to 1800 and of the Parliament of the United Kingdom from 1801 to 1950. It was represented by two members of parliament. It was divided into the single-member constituencies of Derby North and Derby South in 1950.
Harcourt
Roe
Haslam