Dukedoms of the British Isles by reign

This page lists extant dukedoms in the Peerages of the British Isles, listed by the monarch who created them—see also List of dukedoms in the peerages of the British Isles.

Peerage of England

Heir to the throne (special case)

Duke of Cornwall (1421)

King Edward III first created the title Duke of Cornwall, the first dukedom in the British Isles, for his son and heir Edward, called the Black Prince. Since 1421 the title has automatically been held by the eldest son of and heir apparent to the sovereign. Since his mother's taking the throne in 1952 the title has been held by Prince Charles, who like many Dukes of Cornwall also holds the title Prince of Wales. See also Duke of Rothesay.

Created by Richard III (1483-1485)

Duke of Norfolk (1483)

This title was granted in its third creation to John Howard, Lord Howard, who supported the king in deposing his nephew Edward V. The title has been forfeit and subsequently restored three times, and is now held by the Fitzalan-Howard family. The Duke of Norfolk is the premier duke in the British realm, as well as its premier earl as Earl of Arundel, and Earl Marshal.

Created by Edward VI (1547-1553)

Duke of Somerset (1547)

Lord Protector Edward Seymour, Earl of Hertford created this title for himself in the name of his nine-year-old nephew King Edward VI when he came to power. The title is still in the possession of the Seymour family.

Created by Charles II (1660-1685)

Duke of Richmond (1675)

This title...
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