Duke baronets
There have been two Duke Baronetcies; both are now extinct. The first was created on 16 July 1661 for Edward Duke in the Baronetage of England, and the second was created on 5 December 1848 for James Duke in the Baronetage of [the United Kingdom].
Duke of Benhall, Suffolk (1661)
- Sir Edward Duke, [1st Baronet]. He was one of two MPs for Orford during the Short Parliament in 1640.
- Sir [John Duke, 2nd Baronet]. Sir John was also MP for Orford, serving 1679–1685, 1689–1690 and 1697–1698.
- Sir Edward Duke, 3rd Baronet. Sir Edward, like his predecessors in the title, served as MP for Orford.
Duke of London (1849)
- Sir James Duke, 1st Baronet. Sir James was MP for Boston and the City of London.
- Sir James Duke, 2nd Baronet.