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 Beira Braganza. Prince of Beira Prince of Beira () is a title traditionally granted to the heir apparent of the heir apparent to the throne of Portugal. The title's original use that it be granted on the eldest daughter of the reigning monarch of Portugal. Tied with the title of Prince of Beira, is Duke of Barcelos, as heir to the Duke of Braganza and Prince of Brazil ("later" Prince Royal of Portugal). The current Prince of Beira is Prince Afonso, the eldest son of Duarte Pio, Duke of Braganza. The title's name has its origins in the Beira province in