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
Edward the Black Prince fitting that a bastard should inherit a kingdom, or drive out his lawfully born brother, and that no king or king's son ought to suffer such disrespect to royalty; nor could any turn him from his determination to restore the king. Peter won friends by declaring that he would make Edward's son king of Galicia, and would divide his riches among those who helped him. A parliament was held at Bordeaux, in which it was decided to ask the wishes of the English king. Edward replied that it was right that his son should help Peter, and the prince held