Dukedoms of the British Isles by reign 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 Britain and Ireland. 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
Prince of Wales medieval England extending principally over the counties of Cheshire and Flintshire. A Prince of Wales also holds a number of additional titles. As heir apparent to the English/British throne he is—if the eldest living son of the monarch—Duke of Cornwall. As heir apparent to the Scottish throne he is Duke of Rothesay, Earl of Carrick, Baron of Renfrew, Lord of the Isles, and Prince and Great Steward of Scotland. Individual princes have also held additional titles, which were theirs prior to becoming Prince of Wales. Before ascending the throne Henry VIII, Charles I and George V were each Duke of