The first creation in 1670 (along with the barony of Nonsuch and the earldom of Southampton) was for
Barbara Castlemaine, a mistress of
King Charles II. The dukedom was created with a special remainder allowing it to be inherited by her first son,
Charles, and his heirs male, then by her third son,
George, 1st Duke of Northumberland, both being her
illegitimate sons by Charles II.
Charles was created
Duke of Southampton in his own right in 1675 and inherited the dukedom of Cleveland after his mother's death in 1709. His son
William inherited both dukedoms in 1730 but died without heirs male in 1774. As there were no heirs male descended from
George, 1st Duke of Northumberland and the 1st Duchess of Cleveland's second son (
Henry, 1st Duke of Grafton)'s heirs male had not been made eligible to inherit the dukedom of Cleveland, the title became extinct. The dukedom of Cleveland was created again on 29 January 1833 for William Vane, 3rd Earl of Darlington, along with the title
Baron Raby. He was a great-grandson of
Charles FitzRoy, 2nd Duke of Cleveland of the first creation, and had already been created
Marquess of Cleveland on 5 October 1827. ==Dukes of Cleveland, first creation (1670)==