Wales Beaumaris, Caernarfon and Conwy. His son, the future Edward II, was born at Edward's new castle at Caernarfon in 1284. He became the first English Prince of Wales in 1301, which at the time provided an income from northwest Wales known as the Principality of Wales. The title is granted by the monarch to the heir apparent as a personal honour or dignity, and is not heritable, merging with the Crown on accession to the throne. After the failed revolt in 1294–95 of Madog ap Llywelyn – who styled himself Prince of Wales in the Penmachno Document – and the
Coronet of Charles, Prince of Wales the ex-king with effectively stealing the coronet, which would be returned to the United Kingdom after his death in 1972. Since the 1902 coronet was unavailable, and the Coronet of Frederick, Prince of Wales was judged unusable due to its age, a new coronet had to be made for the investiture of Charles, Prince of Wales. He had been created Prince of Wales in 1958 but the formal investiture ceremony was held a few months before his 21st birthday. Today, the defunct Coronets of Frederick and George are part of the Crown Jewels of the United Kingdom on display at