Earl of Burlington is a title that has been created twice, the first time in the Peerage of England in 1664 and the second in the Peerage of the United Kingdom in 1831. Since 1858, Earl of Burlington has been a courtesy title used by the dukes of Devonshire, traditionally borne by the duke's grandson, who is the eldest son of the duke's eldest son, the marquess of Hartington.

Duke of Devonshire is a title in the Peerage of England held by members of the Cavendish family. This branch of the Cavendish family has been one of the wealthiest British aristocratic families since the 16th century and has been rivalled in political influence perhaps only by the Marquesses of Salisbury and the Earls of Derby.