The title of Duke of Grafton was created in 1675 by Charles II of England for his 2nd illegitimate son by the Duchess of Cleveland, Henry FitzRoy. The most famous duke was probably Augustus Henry FitzRoy, 3rd Duke of Grafton, who served as Prime Minister in the 1760s.
The Duke of Grafton holds three subsidiary titles, all created in 1672 in the peerage of England: Earl of Euston, Viscount Ipswich, and Baron Sudbury. The Duke's eldest son and heir uses the courtesy title Earl of Euston.
Dukes of Grafton (1675)
- Henry FitzRoy, 1st Duke of Grafton (1663-1690)
- Charles FitzRoy, 2nd Duke of Grafton (1683-1757)
- Augustus Henry FitzRoy, 3rd Duke of Grafton (1735-1811)
- George Henry FitzRoy, 4th Duke of Grafton (1760-1844)
- Henry FitzRoy, 5th Duke of Grafton (1790-1863)
- William Henry FitzRoy, 6th Duke of Grafton (1819-1882)
- Augustus Charles Lennox FitzRoy, 7th Duke of Grafton (1821-1918)
- Alfred William Maitland FitzRoy, 8th Duke of Grafton (1850-1930)
- John Charles William FitzRoy, 9th Duke of Grafton (1914-1936)
- Charles Alfred Euston FitzRoy, 10th Duke of Grafton (1892-1970)
- Hugh Denis Charles FitzRoy, 11th Duke of Grafton (b. 1919)
Heir Apparent: James Oliver Charles FitzRoy, Earl of Euston (b. 1947)
Lord Euston's Heir Apparent: Henry Oliver Charles FitzRoy, Viscount Ipswich (b. 1978)
Grafton
Most Dukedoms in Britain are of significant places such as counties, cities or major towns. Most Britons would, however, find it difficult to locate Grafton on a map of the kingdom. The title is that of the Honour of Grafton in the south east of Northamptonshire; the titular village now being called Grafton Regis.
